A school like HHS should have a HC, Offensive Coordinator, QB coach, RB coach, WR coach, Defensive Coordinator, DL coach, DB coach and LB coach. Some of the mentioned coaches will have JV responsibilities. Coordinators usually coach a position. Then they need a frosh staff. On any Friday Night, you will see 10-20 staff and support members on any sideline.
If Coach Weinrich continues teaching at HHS, I hardly doubt there will be teaching vacancies. It is a great school and I would guess that most teachers there will retire there. The new coach, more than likely, will have to rely on paraprofessionals. Quality coaches are not just sitting around waiting for a phone call. Quality coaches are already coaching. If a local coach is hired, he may have connections. If it is an out of town hire, this will be a challenge for the new coach.