One of the most successful pitchers in my son's HS was a 5-7 kid with a fastball that topped out at 80 when he was finally a senior, but who changed speeds and arm slots, and had two breaking balls depending on which slot he threw it from.
Our HS coach was wise enough not to pre judge players based on velocity and size. Mind you, this was a program in the top division, and was a perennial state title contender, although in a small northern state. (However, the baseball world did kind of realize at this time that this state actually did have some talent, as Oregon State won consecutive CWS titles largely using local kids.)
Anyway, Jared was small and Didn't throw hard, but as a sophomore he won pitcher of the league honors, going 7-1.
The coach didn't care about anything except who could get outs and win games. This kid did it. My son caught countless of his games over the years, so I knew the heart of the kid.
My point is, our HS coach also recognized the heart of this kid. So he put the ball in his hands for three years of varsity ball as the #1 guy. was something like 25-4 over the three years.
A high school coach is not trying to retire D1 hitters. The kid I'm talking about had a nice D3 college career as a SS.