Only thing that bothers me about CTT's comment is I don't really remember him doing that here.
I think this was a philosophy he started doing later. It didn't work with Enrique Davis or Jermaine Johnson, who both went somewhere else.
But it did work with Raven Gray (even though he can't walk now, he did show up at Auburn later), McCalebb, Freeman, and Fairley.
I think it's only risky if you rely on it too much. If you fail to recruit certain players or positions because you think you'll have them coming from JUCO kids you put away two years ago, you leave yourself open to big holes when it doesn't work out.
If you recruit thoroughly
and try to grab some for future use, then it should only help.