Having transfers ready to contribute will always pose a challenge for Fred (or any coach) trying to recruit a HS kid at the same position. It is what it is and it can be a cycle that's hard to break...if he even wants to.
I don't think its about transfers it's about having good players at your position. Whether it is high school kids, Jucos or transfers. Some kids want to know they are going to play right away. Other kids want to prove they deserve to play and are willing to try and beat someone out. That's what happens when you have a good team year in and year out like Fred is doing.
Just like at Kansas and Duke and UNC, etc. good players end up on the bench because there are better ones playing.