If the team is good or even above average they will play 3 pool games on a typical Saturday and 2-5 games on a Sunday. If the team plays 6 games in a weekend you're saying 3 games to sit is too many? Even if they play 3 full games?
We've played as many as 10 games in a weekend with a 11-12 player roster. This is 16U/18U. Yeah, sitting half the time is way too much. Time is short...half of your softball career shouldn't be spent on the bench. I don't know why anyone would be good with that.