My team is a total of 27 girls and we have 5 coaches.....not all 5 can be there all the time....however, if we are just running through getting ready to compete, no more than 2 coaches is needed; however, when they are learning anything new, including changing counts, and changing the stunts a bit....All HANDS ON DECK! For me this is necessary because of both the ages and skill level of the girls. I am coaching 3/4 graders. So with 6 stunt groups, I'd like each group to have a coach that way the practice is not wasted with having so many girls just sitting there waiting their turn to stunt. A good example is them doing full-ups (yes my girls are doing full-ups to the top) we were able to get all 6 groups to do it in one practice because we had so much help. If it was only two of us this same thing could easily take weeks.....They are not perfect and will require all the practice they can get before Nationals, but the know the technique and when I am by myself, I put two groups to work together, one group stunts, while the other spot.
So I will definitely say it depends on the level of skill, age and maturity of the girls.....I know many people may think that 5 coaches for one squad is alot; however, that is how things get done in the short time that we have for our rec squad(s).