Good opinions on each. Some part of how I look at it is that Stearns has done pretty well in the smaller moves- backup Catcher, 4th OF and bullpen...but- in trading for cornerstones' of the organization - no Ace, no answer in CF (sure, you can say that it opened it up for Benge, Ewing) but that doesn't make the trades any better, a dominate bullpen arm that should have been a compliment or replacement for Diaz, and no true impact player.I accept your challenge! Here's my list of Stearns' five worst trades:
1) Ryan Helsley for Jesus Baez, Nate Dohm, and Frank Elissalt - This trade is far and away his worst. Helsley achieved a -0.9 WAR in just two months, which is hard to do. In other words. if some rando had been in the bullpen other than Helsley, the Mets would have (according to WAR) won one more game. That one game would have put them in the playoffs.
But that is not the worst of it. Jesus Baez is killing it in AA in the Cardinals' system. He was their organizational Player of the Month for June. We may be regretting this one for a long time.
2) Freddy Peralta for Brandon Sproat and Jett Williams - Many of us thought this was an overpay at the time, but if Peralta helps us win, it will be worth it. He didn't, and it ain't. Mets will likely flip him in a couple weeks for significantly less than what they paid. Both Sproat and Williams have had their stock drop somewhat, but they still are excellent prospects (although Sproat technically isn't a prospect any more). The potential regret factor of this trade remains high.
3) Marcus Semien for Brandon Nimmo - Semien has been really bad, which is why I rank this so high. His offensive decline has been more drastic than we thought, and his defense has been disappointing to say the least.
However, the development of Benge and Ewing (the latter a year ahead of schedule!) has mitigated the loss of Nimmo. If Nimmo were here, he'd be in the way. I know we miss his smile. But if he were relegated to DH / 4th OF, I doubt he'd be smiling.
The contractual issues are also important. Mets traded a bad five year contract for a bad three year contract. Could be important if a year from now, a salary cap is in place and the Mets are well over it.
4) Cedric Mullins for Raimon Gomez, Anthony Nunez, and Chandler Marsh - Mullins was awful, no way around that. Nunez has made it to the Orioles bullpen where he has been OK but nothing special. Jury is still out on him. The other two are outside the Orioles top 30 prospects.
5) Greg Soto for Wellington Aracena and Cameron Foster - Soto was OK for the Mets, not bad, not great. Foster has made the Orioles bullpen, but he was not a top 30 prospect. I think the regret factor is higher with Aracena.
I gotta admit - Item 1 on this list was so bad that it overshadows all the good ones.
His FA record may also be just as bad. We can find a few good ones- but man, the money spent on horrific moves are crazy.
And since we don't know what may happen in a salary cap in 2027...we do not know yet if Semien's shorter but higher salary will help or hurt us vs Nimmo's.