I'm not a huge GD guy, more of an HD guy but I really enjoy it for certain stretches. Not having Junior College or Transfer players might be the stupidest thing I've ever heard of though. First of all, it's not realistic. Second, it's a great way to balance classes and build a program, and third is it adds strategy to the game. Do you recruit half JC half HS. All HS guys, etc.
I don't know if there is a good reason I'm missing but this just seems ridiculous.