I think if you start at a ND school (college) for baseball, you've already resided to the fact that this level is maybe the end of the road. Even the percentage of kids that make it by going elsewhere is miniscule. Takes not only exceptional talent, but some breaks along the way to get to the highest level. And our short season doesn't help with the development of great baseball players.
Most of the kids listed in my post above don't see the field until year 3. So, no, I don't see them moving around much. Sure there are exceptions. I know Brady Nygaard from Mayville (Mayville State) and Brady Smith from Carrington (VCSU) have been starting since they've been freshman and are now juniors and both appear to be content where they've landed and are doing great in their respective programs.
If you think you have what it takes, you better go South or West. Or better yet, get with one of the majors that ends up in the College World Series every year. You see a lot of those guys getting drafted...