I think you took what he said the wrong way. it seems to me he is simply stating those types of players shouldn't stand in the way of the young pitchers that are showing potential to be number 1, 2 or 3 starters. I don't think he was saying get rid of every pitcher who is a non-prospect.
Right now the only interesting prospect pitcher at AA is Slegers and even he looks like a four or five to me. You could say Eides but really in the end he is just too hittable. They really should move him to the pen unless they just want him to be filler. The rest of the spots appear to filled by guys that have peaked and at best would be number 5's. Why have those guys block the prospects with greater potential?
You can say it is early in the season and it doesn't matter but these guys are only going to throw so many pitches\innings this year and it makes more sense to challenge them and acclimate them to a new level as soon as possible so that you can decide what they can do at the upper levels and if they are worthy of being added to the forty man or helping the Big club ASAP.
A lot of us don't see the point in delaying the young pitchers when there is no one of note blocking them.
I'd never say that top prospects should be blocked. I'd also say that keeping a top prospect at the right level isn't always a bad thing either.
I've said many times that I think Gonsalves is ready to move up. I think a case could be made for Stewart. Those two are top prospects. When they deem them ready, they'll make room for those guys. Jay needs to be more consistent. Jorge just needs another 5-6 starts at the level to see how it goes. Pushing guys can be good, or it can be completely detrimental, and I certainly won't pretend to know when the perfect time to promote a pitcher (or hitter, for that matter) is.
LeBlanc and Clay likely move up when Gonsalves and Stewart move up. I'm comfortable with that. But Andrew Albers isn't keeping anyone from pitching at Rochester. Slegers has had mixed success in about 8-10 AA starts. There's no need for him to jump to AAA right now. Giving up on Eades at this point would be silly. Maybe he becomes a long reliever. Maybe he flames out in AA. Maybe he becomes a solid #3 starter, and if Berardino's reports of him hitting 97 this spring was accurate, and he does have 4-pitches, it may click for him in July, or next May... or not at all, but to say at this point he'll never make it isn't right... Pushing him to a level that doesn't put him in a good position to succeed doesn't make sense.
I just think it's silly to say that there is no value in having some organizational filler in the upper levels allowing the organization to be more patient with prospects that they believe in.