Most of the top "A" teams become low "A" or high "B" teams if you take their #1 pitcher off their roster
I'm guessing the No 1 has to pitch every game then or your team becomes less. I'm not saying it won't affect a team if the No 1 goes down but I can't see some kid in the OF laying out and putting her body on the line when she has a pitcher she knows won't try to stop a run.