I think the question of team control is irrelevant, Anyone can be controlled for the right price, even another team’s first round draft pick (Chase Petty is doing well in Cinci’s system).
The Correa deal ought to have showed us that Wheeler would have come to the Twins for 2020 for the right price.
Those of us who wanted Yu Darvish prior to the 2018 season were subject to a healthy dose of schauenfreude when Darvish immediately got hurt after signing. I played the long game and didn’t give up on that take, and Darvish has performed since then, if not All Star.
I will likewise play the long game on Berrios. Any pitcher is capable of a successful stretch of 8-10 starts (thank you Devin Smeltzer), and likewise any pitcher who has had some long term success earns the right to a mulligan for 8-10 starts, too. Berrios has done just fine his last few outings. He may be coming around. Time will tell. How will the Berrios trade look in three years? I don’t know. But the two players we got in return for Berrios from Toronto will be slipping down the minor league rankings heading into next season.
Tyler Wells is another name you could add to the hypothetical bullpen list or even rotation for this season.
Lots of other posters here have chipped in good words for several other pitchers a little lower in the system who have departed over the past few seasons.
There is unfortunately no magic taking place, no broad new philosophy at work here, within this team’s brain trust, to build a pitching juggernaut. It’s just the usual scouting, coaching, development, and transactions. And that’s okay! We all hope that the front office starts hitting on some of these transactions, starting with the 2022 trade deadline coming up, We can still all come together and cheer for the Twins when the money is on the line.