Agree with the last two posts that it is case by case - lots of variables to be considered. Here's one that hasn't been brought up... JV teams are supposed to be developmental. Most JV teams have at least seven or eight kids who have potential as P's (our current JV squad has ten we would like to look at). It's always a challenge to find game innings to let them develop and get comfortable against live opponents when you only play two or three games a week. That's much harder to do when you stretch your starters out six innings.