They can have. Should they? Why not. TSSAA rules make it possible to do so, if certain conditions are met. Why is it not done more often? Two words-liability and accountability. Most schools have a wide variety of athletic teams to find coaches for ( football, basketball, soccer, track, tennis, golf, baseball, softball, wrestling, swimming, etc.). Many of these have both a boys and a girls coach as well as different levels...varsity, JV, freshmen. Most school systems don't want to deal with trying to keep up with a large number of non-faculty coaches, or, for that matter, even one. Maybe one day this will change, but don't hold your breath.