Getting back to how this affects the rotation. You now have a full rotation of guys that are wild cards in terms of how long they will go in a game. Some games will be 4-5 innings, some games will be 6-7, but there won't be much in consistency. Many of us are hoping that Adams can come in and be a swingman that can pitch multiple innings and save a bullpen even though he has yet to throw a pitch in the majors.
The Twins may also have a roster crisis looming in the bullpen. Considering Coloumbe took Zebby's spot on the roster, the Twins will need to make a roster move prior to activating SWR from St. Paul. Assuming you're not moving Duran, Jax, Varland, Stewart, Sands, and Coloumbe, that leaves us Adams, Topa, and Alcala as options to move off the roster. Of those three, Alcala is the only one out of options. You'd think they would want to keep Adams on the roster as he now has a real purpose as explained above. Topa does have options and is a more back of the bullpen arm. Further down the line is Tonkin looming as he is coming back from the IL. He appears to be on track for late June, barring any additional setbacks. Since he is on the 60-day IL, he'll require a 40-man move as well