Oldest son was the ace junior and senior hs years as RHP. Coach needed his LH bat too as 3 or 4 hitter, so he would typically go to outfield or 1st base when done pitching. 80 pitches was typically the magic number where he'd get pulled for another pitcher. Typically, he was very efficient with his pitches, so he'd be going deep in the game.
Middle son was 3rd baseman and spot relief pitcher junior year. Senior year he was either starting in the field or starting on the mound. When done pitching he would come out of the field and sometimes stay in as a DH as he was left handed hitter. It depended on the situation.
Youngest son was PO, so there were no issues there.