They don't do it like that. Most (around Texas, anyway) separate out Freshman A and B from JV, but they all assemble on Friday for the Varsity games.
Yes they do, that's why I said it like that.
In addition to the different teams (frosh, JV, Varsity) there are the position coaches as well.
Our local team (5th in state rankings) also has an othorpeadic MD and two trainers on the sideline. The local newspaper predicted standing room only 90 minutes before kickoff. We're expecting 800-10,000 fans.
Of course its the type of game where in the past we've had the local congressional rep lead prayer from the 50 yard line and the band plays Dixie.