At our gym, HC goes to all the meets unless there is a conflict (she missed a meet last time she gave birth). We also have AT LEAST one other coach there. The plus about our gym is that one of the other gym moms is an assistant coach and 2 of the other moms are rec coaches with team coaching experience. These 3 moms have girls in 4, 6, and XLG, so most sessions would be covered in an emergency. I have gymmies in 3 and XLG and could also step in at he meet if necessary during the Level 3 session (I got my USAG Professional Membership and have taken all the basic courses). We have no L5s and our 2 L7s will always compete with the L6 OR XLG & XLP, so all of our sessions are easily covered. We do have 3 assistant coaches that do not have gymnasts on team and it is possible that all of them may go to some of the meets (they will def be at home meet and District Championships, since it is at home). With our large L3 and L4 teams, it is possible we would get split into 2 flights in a meet, so we need extra coaches.
It also seems that this year, we will probably be doing more Modified Capitol Cup format meets (which I personally HATE for the compulsories), so we will be split part of the time, even if we are all in the same group.