At the end of the day, the primary goal of the team is not to develop 8 pitchers; it's up to the individual pitcher to develop themselves. This is NOT a travel ball team by anyone's definition. If my DD worked her tail off to get to the point where she was very good pitcher and could strikeout many players and the HC says "I'm not going to pitch her because we need weak pitchers to throw slow, meatballs over the plate so our defense can get a lot of work fielding" would be the last time DD played for this coach. Let me say it again, this not a travel ball team. Your DD needs to play on a competitive team otherwise she is wasting her time.
A pitcher who is striking out every batter she faces needs to find better competition or move up an age group. Lower level and younger age group TB teams are about player development, they should not be about winning. It took me a few years to finally figure this out, but suddenly the light bulb goes off and coaches no longer care about winning games, they care about developing players so when they get into tournaments they do want to win - qualifiers, nationals - the team is as prepared as possible. You do not get your TEAM ready to play by riding an ACE pitcher to easy victories against inferior competition.