Wimmers will get every chance to shine in 2014 in the minors. The question is, do the Twins put him on the 40-man roster. He would have to start at Ft. Myers this year (partly because he will still be in the best training center area.) You can debate if he will go as high as New Brit. But he has to try and make it as a starter. As Seth says, he can 40-man for 3-4 years, if the Twins feel they have the space for him. He just needs to face batters now.
My question: what type of rotation are the Twins trying to build? The names mentioned in this list as pitchers sound like they are simply less experienced versions of the pitchers that are/have been in the rotation the past few years. Continuing to develop this type as a starter inevitably leads to adding the most successful as "tryouts" to the rotation. The answer is already in--these aren't the guys! The bar for the rotation must be set higher in order to actually develop the rotation required to win consistently. Melotakis, (I thought) had the most success of the named bunch this past season, projects (to me) as a Craig Breslow--who is actually a darn useful pitcher! Another thread is neded for Breslow--so back to Melotakis, develop him for what he really is/can be. A very useful pitcher can be had, and not in an interminable period. Geese should not be confused with swans despite how much you truly want swans.
I don't know what you're hoping for. There are only about 15 true aces in all of baseball. There are maybe 30 #2s, an then pretty much everyone else fits into the 3-5 category. Those guys throw the types of velocities that these guys throw. They throw the types of pitches these guys throw. And many of them become successful in the big leagues.
There is no one way to build a rotation. There is no "perfect" pitching prospect (Mark Prior was one, right? Strasburg? Cole? Etc.) With so few obvious top pitching prospects, having a few of them is good, and the rest are guys you're hoping with based on one or two pitches, good control, etc.
As for Melotakis, and Wimmers, and Duffey, it would be silly to give up on them, just like Summers from a previous list. They could continue to progress, find something that clicks. Get used to working a full season and what that means they need to do. Who knows?
Melotakis spent better than half the 2013 season experimenting with different grips for his breaking ball and really didn't come up with an effective one until almost the point where he was pulled from the rotation and moved to the bullpen due to his innings. He's got plenty of velocity on the fastball to fall back on, whether as a starter or bullpen arm, but if he had worked strictly from the pen in 2013, would he have gotten enough innings to finally find that breaking ball? Or would he still have been looking for it next year?
I think it's much too soon to know with certainty what his eventual role will be, but I agree with Seth, until you know a lot more than what you know now, you let him get starting pitcher innings and as much work on those secondary pitches as possible.
I don't want to make too much of the stats, and I know a lot of these guys are working on other things and have a little time, but I gotta say - the K rates from some of these guys that I had higher expectations for, are again making me wonder about how the Twins scout pitchers.
I had Mason Melotakis as my Adopt-a-Prospect in 2013 and I got to meet him in Cedar Rapids when I made a trip there in June. He seems like a nice young man and seemed legitimately surprised and flattered when I told him he was my Adopt-a-Prospect. He seems to have the skill set to advance quickly and he did a good job last season overall. I would expect that he'll advance quickly when his role (starter or reliever) is determined.
As with everything else pitching-related, I blame it on 'Pitch to Contact';)!
How many pitchers, in general, not necessarily just prospects, significantly increase their K rate after joining the Twins organization?
Recent case in point, perhaps not statistcally significant, but still possibly indicative:
Miguel Sulbaran moves within the same league:
@ Great Lakes K*9 8.3
@ Cedar Rapids K*9 7.2
That's a 13.25% drop in K*9 rate.
Of course, he threw 92.2 innings with Great Lakes and 20.0 innings with Cedar Rapids, but don't worry about that small sample size. Or, that the West was much more difficult than the East division this year.
And we got him for Drew Butera? I'm still laughing about that one