We have one where I am, the head director/Fine arts director had a say in planning it. Make sure there is enough sideline room for a front ensemble, make sure there is a "directors stand" or an area for directors and coaches to stand on the 50. Make sure there is plenty of airflow from multiple garage doors/the company "big @$$ fans" there was one rehearsal we had in there where it was hotter in there than it was outside. And then potentially a speaker system in there with a wireless mic that can be used anywhere on the field.

Good luck on getting it approved!