TRhit;
You are right, most college players were "studs" in high school, or they wouldn't be on a college team in the first place. They can't all be the best player now on a college team made up of the best players from several different graduation years and high schools
However, college coaches are far from perfect, and that applies to even the best coaches at the best schools. Some of them don't play freshmen who are clearly studs at the college level, for a variety of reasons. For some it's a personality conflict, for some it's the respect or affection the coach has for a certain upper classman, for some it's reasons nobody can fathom. While the coach can make whatever decision he pleases, so can the player, within the rules.
While you would expect that the team's record of success or failure would serve as some kind of check on the Coach's actions, the sad truth is that many D-1 coaches have losing records, year-after-year, but remain at the school. Baseball is not a glamor sport at most schools, and many ADs are happy if there is no controversy; a winning season would be nice, but isn't important. Unlike football or basketball, as a head baseball coach you can do a bad job in the w-l columns for many years, and still have your job security (with the exception of the "top 40 " programs like LSU, Texas, Miami, etc.. So, if a player perceives that he is stuck in such a situation, and there is no real motivation for the coach to get it right, he needs to seriously consider a transfer. And I would urge parents thinking about where their son is going to sign, to check the coach's and school's record over the last several years, to get an idea of their philosophy on the issue.