There's some risk there, sure. The thing is - the transfer market in college football isn't great. If you play, you'd likely play under a new staff. If you don't play, you may be an unknown for years, and a team needs to be willing to invest in you enough to swallow the transfer season. So I think most of the guys would stay, and certainly the best players among the group of ones that might think about looking elsewhere.
You're right and I'm actually over who would stay or go. Everyone who is involved or who will be involved needs to get this thing going in the right direction.