I don't think this is a real concern for anyone. These kids want to play. If switching to OG gets one of them on the field sooner, they'd be stupid not to do it. No sense in worrying about one's relative draft projection while sitting on the bench.
Yeah, I can just imagine the intrigue...
Recruit: "Can you trust the coaches?"
Elmer: "No way, let me tell you how it REALLY is. They said I was going to play tackle, and so that is where I practiced. But they needed someone to come in an play guard early, and asked if wanted to. I said great. I think I did really well, it suits my atributes. Well, then the next year, they moved me back to tackle, just like they said they would. I won the starting job. However, I really started to struggle in the games at that position."
Recruit: "So they benched you?"
Elmer: "No, they kept me in the starting lineup, but moved me inside to try to take pressure off me and help the team."
Recruit: "But you'll never play tackle again?"
Elmer: "No. Next year, when I'm a junior, they said I can try out for tackle again. Can you believe those guys? What a bunch of used car salesmen."
Recruit: "Yeah, I'm going to LSU, where you can trust people."