Lack of roster turnover the exception

These days roster turnover (except for graduation) seems to be the rule. Most teams will lose someone for one reason or another. Kids tend to think the process is about them instead of about the team and the program. Instant gratification is rampant in society. I expect recruiting is so competitive that coaches (many of them, at least) tend to exaggerate the realistic opportunities for playing time. Players are less receptive to disciplinarian coaches. Lots of factors.