This Santana hill is a weird one to pick to die on. Santana is not great. He does some things well. A few things. He can get into a fastball every once in awhile. He's got nice pop. He is on pace to strikeout over 200 times and is a horrifically bad defender. Yes, like Thames level of bad. He should be on an AL team, which he is. Braun isn't tradeable, so I don't know what you wanted them to do. Santana wasn't going to play every day here so he wouldn't be putting up fulltime numbers, and again, when he did he'd be one of the worst defensive outfielders in baseball. If you want to criticize Stearns for not getting Santana traded after 2017 when his value was higher, that's probably fair, but the return of a top end 4th OFer with an extra year of control + a prospect is perfectly appropriate compensation for Santana. You're overrating him pretty drastically. This is not a lopsided trade.