My son was the closer on his high school team. I didn’t get it since the handful of times he started he went five innings mowing down hitters. By junior year he was cruising 87/88 and maxing 90.
Given he wanted to be a position player and the high school coach knew little about pitching (despite being a D2 AA position player) I didn’t mind. He left pitchers on the mound until they were smoldering cinders.
One time soph year on a thirty something windchill day the coach asked my son to come from short on eight warmup pitches. My son requested being pulled from the game for one hitter to quickly warmup and be returned to the game as the pitcher.
The coach got pissed at him and left a dying starter in to finish. After this incident my son always threw on the sideline between innings after asking the starter what he had left to know whether he would be needed in the 6th or 7th. By junior year if the starter wasn’t cruising my son started the sixth or seventh inning.