The Phil Kessel era in Pittsburgh reached its inevitable conclusion on Saturday evening when the Penguins shipped the star winger to the Arizona Coyotes for forward Alex Galchenyuk and defense prospect Pierre-Olivier Joseph. It finally ended months of rumors, speculation, and even some drama that constantly swirled around an inconsistent regular season and disappointing postseason that seemed to give management and the coaching staff an unquenchable thirst for change.

Whenever that change was discussed, everything that was talked about always made Kessel the most likely candidate to be on the move.

General manager Jim Rutherford repeatedly talked about too many players on the team becoming too comfortable and complacent.

There was talk about commitment and “playing the right way.”

There were salary cap concerns as the Penguins were once again pressed firmly against the ceiling and having little flexibility to make the changes they wanted to make.

Then there was the seemingly tumultuous relationship between Kessel and head coach Mike Sullivan as the two did not always see eye-to-eye.

After trying to send Kessel to the Minnesota Wild earlier this summer, only to have Kessel utilize his no-trade clause and block the deal, Rutherford finally found a match with the Coyotes, reuniting Kessel and Rick Tocchet, his former assistant coach in Pittsburgh.

Kessel and Rutherford seemed to disagree over the nature of the departure, with Rutherford saying on Saturday that Kessel had requested a trade during the season, and Kessel simply saying that is not how it happened. Who is telling the truth is anyone’s guess, but now that the trade is completed the how and why is mostly irrelevant. The only thing that matters is what the Penguins’ roster now looks like and what they do in the coming weeks and months (and years) to make it better.

In the short-term it is almost impossible to argue that the roster is better from a talent standpoint.

[Related: Penguins send Kessel to Coyotes for Galchenyuk]

That puts a ton of pressure on Rutherford and Sullivan because they now have some big tests ahead of them, and they are going to need to be right every step of the way.

The popular sentiment coming out of Pittsburgh in the immediate aftermath is the Penguins probably did better than expected given how little leverage they had in trying to make a Kessel trade. It was obvious the Penguins were motivated to move him and he had significant control over where he went, reportedly loading his approved trade list with teams he knew the Penguins would not trade him to. If I were a betting man, I would wager that list included a lot of Metropolitan Division teams, as well as maybe Boston and Toronto, Kessel’s two previous stops in the NHL. That certainly put them in a corner.

Getting a good NHL player and promising prospect in that context probably is a pretty decent haul if you were hellbent on trading him.

But you don’t win championships or give yourself a chance to win championships by simply doing better than everyone expected you to do when trading an elite offensive player.

You win championships by having better players than everybody else. That is now the short-term problem for the Penguins.

At this point there are not any secrets when it comes to Galchenyuk and what he is as a player. He possesses a lot of the same flaws that Kessel does defensively and away from the puck, but does not provide the strength of being a world-class offensive player. You may not like Kessel’s defensive play, but there are only a very short list of players in the world that are better than him when it comes to producing offense. You at least have that going for you when you have him on your roster. If you are going to be a one-trick pony, that is a pretty damn good trick to have at your disposal.

I do not know that Kessel’s style of play, approach, or attitude changed all that much over the past few years. He is what he is as a player and he is who he is as a person. What changed is the Penguins stopped winning Stanley Cups. You tolerate the quirky, all-offense, no-defense winger when he is helping to hang banners and taking part in parades.

When all of that stuff stops, it is no longer something most hockey men want to put up with.

Now the Penguins have one less elite offensive player, and unless Galchenyuk somehow puts it all together and scores 30 goals for the first time in three years — a season that is now looking more and more like the outlier in his career — they downgraded their roster in the short-term.

Arguing against that as we sit today is arguing against facts and logic.

Because of that, the entire trade, as well as the direction of the Penguins after the trade, hinges almost completely on the development of Joseph, what the Penguins do with the new salary cap space they now have, and whether or not they were right about needing to change the culture of the team … and if that even matters.

This is where the challenge for Rutherford and Sullivan comes in.

Joseph is an intriguing add because despite the claims of Rutherford earlier this offseason when he said this is the best defense he has ever had in Pittsburgh, his defense is actually quite a mess once you get beyond Kris Letang and Brian Dumoulin. They also didn’t have anyone in the prospect pool that looked to be even worthy of a mention as a top prospect.

Joseph, almost by default, immediately becomes the team’s best defense prospect and actually plays a style that would seem to suit the Penguins when they are at their best. That is good. The key is going to be developing him into something useful at the NHL level. The problem is the Penguins really haven’t done a good job of developing young players over the past few years. They have to get it right with Joseph, not only to justify this move, but because they NEED someone like him to be good. But that is probably a year or two away from becoming a factor, not only because of where Joseph in his development (he has never played above the QMJHL) but because of the logjam the Penguins still have on their blue line.

The more immediate issue is the newfound salary cap space.

When it comes to this offseason, the Kessel-for-Galchenyuk swap doesn’t really do anything to remedy the team’s short-term cap issues as it only saves them about $1.9 million. That gives them, via CapFriendly, around $5 million in salary cap space.

Given their own RFA’s they have to re-sign, probably wanting to keep a little wiggle room under the cap at the start of the season, and the cost of any new UFA signing it doesn’t really give the Penguins much added flexibility under the cap without making another move to ship out more salary. Rutherford hinted he may now be able to add someone on Monday at the start of free agency, but unless someone takes a huge discount to go to Pittsburgh, or he makes another trade, he will only be adding a fringe player around the edge.

They do not see any real salary cap savings until next summer (and the summer after that), and that is assuming they do NOT re-sign Galchenyuk. If they do, he probably costs at least $5-6 million and pretty much erases that newfound cap space they got by trading Kessel. At that point they would be betting that Galchenyuk would be a better use of that cap space than Kessel would. Even taking into account a decline from Kessel, that seems like a tough bet to make.

The bigger issue, though, is that if Rutherford is going to make a move in free agency he has to do a better job than he has the past few years where he has not only slowly shifted the Penguins away from what made them a success, but has also made some objectively bad moves.

The Penguins are not in a salary cap crunch because they are paying their stars. It is because they have made some bad investments with their second-and third-tier players. How much better would their salary cap situation look this summer if they did not commit more than $7 million to the duo of Jack Johnson or Erik Gudbranson? Or the more than $5 million per year (for another five years) they have going to an aging and apparently rapidly declining Patric Hornqvist?

Just look at what the Penguins have done in free agency the past two offseasons.

• In July 2017 they signed Antti Niemi to be their new backup goalie behind Matt Murray. Niemi didn’t last two months with the team before being waived.
• That same summer they signed Matt Hunwick to a three-year, $6.75 million contract. It was a fit that was so bad from the start the Penguins had to trade Conor Sheary along with Hunwick just to dump salary one year ago to create cap space.
• They used that new cap space to sign Jack Johnson to a five-year, $17 million contract exactly one year ago, a contract that has already become an albatross on their cap.

That is only the tip of the iceberg when it comes to the revolving door of other roster moves that have led to a decline in success.

Salary cap space is only as good as what you do with it. The Penguins have not maximized what little space they have had in recent years. That trend can not continue.

Then we get to Sullivan and the pressure that is now on him.

Whether it is the reality of the situation or not, the optics from the outside are that he won out over Kessel in what can probably only be loosely described as a power struggle. The player that didn’t conform to the way he wanted to play is gone. The culture changes and maybe the team begins to play the “right way” (in their view) as a result.

But all of it better work out for his sake because there can be no denying his seat is white hot after the way the team fizzled out in the playoffs. Sullivan is entering a season where he is a lame-duck coach, and the general manager does not seem to have much urgency when it comes to signing him to a contract extension.

Adding to the fire is that the Penguins just hired Mike Vellucci, the reigning Calder Cup winning coach in the American Hockey League, to be the new head coach of their top farm team in Wilkes-Barre/Scranton. That came after Vellucci mutually agreed to part ways with the Carolina Hurricanes organization. Why would he resign from an organization he has been a part of for so long, where he has had recent success, to take a lateral job in another organization?

In his words, it was because he was “presented with an exciting opportunity that makes sense for my future.”

Allow me to translate that: He thinks he has a faster path to an NHL head coaching job in Pittsburgh than he did in Carolina, and that would not be an incorrect assumption. He and Rutherford have a connection from their Carolina days, and he would seem to be the obvious in-house replacement if the team with the lame-duck coach stumbles out of the gate.

If you want to argue that the Penguins had to trade Kessel, there is plenty of evidence to suggest that they did. Maybe change was necessary. Maybe he was the significant core player on the roster that made sense to move. Maybe he wanted to move.

They still have a lot of work to do to get better as a result of it, no matter the reason, and they are not anywhere near getting there.

Unless something changes drastically in how they evaluate players, what they value in players, and how they utilize their salary cap space none of what took place over the past 24 hours will matter as they run the risk of their remaining championship window in the Sidney Crosby, Evgeni Malkin, Kris Letang era closing even sooner than it needs to.

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Adam Gretz is a writer for Pro Hockey Talk on NBC Sports. Drop him a line at phtblog@nbcsports.com or follow him on Twitter @AGretz.