There's a pretty fundamental difference in most levels of baseball, and MLB. Little league, travel ball, high school, college......all focus on a less consistent schedule, with a sense of urgency in every game. MLB is more of an everyday slog, playing a long schedule, constant games, and long playoff series. The metrics and analytics make more sense at that level, due to the consistency.
So to me, you should not play college ball like MLB, at least as far as how you coach it. Now we all know velo and home runs help, no matter what level you're at. But it's how you get to that point. Junk ballers, small ball, in-game strategy......all better suited for college.
Now as far as development of players to get a desired result, that's tough. There ain't a whole lot of development going on from little league to college......as that level of baseball is a more results-based format. If you want development you have to do it yourself. That's why you see college players generally get better in summer ball, and you see decent players in college blow up in MiLB......because they are getting real development.
That's why, if I'm a college coach, I go and just try and find the best athletes I can and roll with that. I'd let a metric here or there slide. Of course nowadays it's all intertwined because everybody is on the travel/showcase circuit and all are developed, at least individually, to a max point.