This may be more of a pitching development observation but it also directly affects the bullpen. With young starting pitching depth we should be looking for places to get them major league experience and it doesn't have to be starting. Just like they build up their arms for length I think its just as important for most players to get built up to handling major league hitters.
Sure, there will still be guys that can go straight to the rotation but unfortunately that's a huge jump that a lot of guys don't make well. I look at it like the NFL and QBs. Every year we see 2-6 guys drafted and thrown into the fire as some sort of savior and what happens? Pass/Fail and Mahomes and Burrow are the outliers. As much as I hate to say it, I expect Jordan Love to be good in Green Bay.
Drew Rasmussen of the Rays, who develop pitching pretty well, is a great example of this. He did a great hour long interview with MLB radio a couple of weeks ago that got me thinking. He was a very highly touted prospect with injury issues that bounced around a bit. I found a short audio clip of the relevant part but the whole hour was a good listen.
Basically he was put in the bullpen to figure things out and just developed into the rotation. Had he stayed healthy he probably goes straight to the rotation as hes always been very talented-only 74 minor league innings. Point is, every pitcher is figuring things out and they all develop differently. The constant is that getting major leaguers out consistantly is hard and the gap from AAA is larger than any other gap in the path.
I think we should be embracing throwing prospects into the major league bullpen. Winder Ober, Varland and SWR should all be in this mix. We know they have good enough stuff to be successful in good situations. Rocco can get them started with favorable match ups and build confidence and technique from there. Doing well with one inning? Heres two, now three. Now one in high leverage and so on. Maybe they add a tick in velocity and can keep it as they build up to starting. Maybe they become Duran and they are stuck there. Maybe we find out they can't hack and we can cut bait earlier. All good outcomes in my opinion that are even worth starting a service clock early.
I'm comfortable with the bullpen this year simply because the overall pitching depth is much better. As long as the Twins are willing to use these resources to get outs regardless of what part of the game it is they will be fine.