I think you can call yourself that if you want anytime - kind of doesn't mean anything. What JC was implying - who knows but it has actually been kind of true in some games. Last year's squad would have had the dagger in WSU heart.
I don't think that is right. I think you can tell a fringe player (for whatever level you are at) to go to a prep school because there isn't any availability right now. Doesn't mean the kid will do it but you can ask him too. That is almost certainly what is happening to Ronnie Suggs with Mizzou and most likely is what is happening with Welmer. The reasons the kid will agree are indeed because they want to add maturity, development, etc. but it almost certainly is at the request of the team. I do agree that if Suggs or Welmer had offers from comparable programs to start in 2014 they likely wouldn't be going the prep school route. But they didn't.
The big danger with this route is that you find a hidden gem, try to stash him in a prep school and he has an incredible senior year of highschool before he signs his LOI. At that point, comparable schools will start recruiting him and tell him to skip the prep school route and come to their school right away.
Yes you can tell a kid to do that - schools do it all the time for football - the problem is once the kid gets to the JUCO and the time comes for him to sign - even if you helped place him - he has no expectation on his part to sign with you. So, it is a bit of a crap shoot for the school and I guess for the kid also.