Food for thought.
1) Every coach has favorite players. These are usually the ones who are most coachable; no one gets any great pleasure out of constantly dogging a more talented player in order to extract a better performance out of him.
2) Every coach will have players who hate them. It's not until five or ten years down the road that the attitude starts to change; this can take place earlier if the player is smart enough to see why it was done, and it can take place much later if not. Of course, the last sentence is null and void if the coach is both unpleasant and an idiot.
3) Most players aren't smart enough to be able to tell the difference between a coach being an ass and a coach pushing buttons to get the player to perform at a higher level.
4) The thinking with starting an upperclassman when all other things are equal is based on the idea that nearly every player will develop as time progresses. It is the rare player who remains "the eternal freshman" and continues to make mistakes well after the point where it would be considered normal.
5) Coaches will treat players differently for a variety of reasons. A good coach will find a way to maximize his players' ability; this could be done by yelling at them versus ignoring them, by praising them excessively versus criticizing everything, from calling them out in front of their teammates to taking them aside, from being a nice guy to being a snarky SOB. Until a coach figures out what a certain player responds to, it can be unpleasant for the player.
6) The most successful coaches have two common threads: they are detail-oriented to the nth degree, and they have little to no tolerance for deviating from the details.
Of course, there are good coaches, bad coaches, and average coaches. I had all three in my playing days, and I've been around all three as a coach myself. I was coached by one who would get along great with Ed Orgeron, and also by one who installed a wing-T offense without ever actually spending one second of practice time (or chalk time) going over blocking schemes. I'm not making that up....an entire preseason and regular season, and not once did anyone know that on a sweep, the guards were supposed to pull.
If we're going to compare Fulmer in his later years to another coach, it's John Cooper. I feel safe making that comparison for a variety of reasons, which also includes talking with some of his former players.