Grant, Glover and Singleton were all bigger, thicker bodies than Felix. Bootsy actually played center in HS, so he had experience in backing down smaller guys. Postell really didn't develop his outside shooting till his senior year. Wasn't the primary scorer on any of his teams but still managed double figures his last two seasons. I don't get the Felix analogy with them. Fordham I get, because like Felix he was never an offensive threat.
My point was that a lack of height could be compensated with other strengths. The only analogy is that tweeners and undersized players can be used at either an advantage or a disadvantage (for example speed and hops over height and bulk). It is up to the coach to recognize their strength and play to it, and the individual player to understand that and accept it.
All of them were more experienced especially in hindsight of four year careers, and let's not forget that Grant who was one of my favorite players, did not look great when he came in. He only really shined under a new coaching staff. Postell didn't develop his outside shot. Exactly. He got PT, coaching, worked on his game. He got a chance and developed his game. But regardless, he spent 4 seasons as an undersized guy skying over much bigger guys on both offense and defense due to his explosive athletic ability. Pointer is another good example. Roosevelt Jones on Butler is a great example. The guy has no box that you could pigeon hole him into. As a coach you could completely dismiss him because he has this really awkward looking style and doesn't fit one particular prototype.
We haven't seen enough of Felix except in short, random spurts and from what looked like some kind of ill-conceived attempt to force him into a role he wasn't made for. We know he has freakish athletic ability and he seems like a smart kid that is coachable. Let's see if this staff can harness it? We need guys that can give us minutes. We are long, thin and will need to find ways to compensate against larger, more physical teams. He is one of 5 options on this team that has seen any PT in Div I basketball. Only one of those guys (Johnson) are we looking at as a guaranteed starter.