In truth I think a factor of lack of coach’s is more factor teams have more coaches then a lack of people wanting to coach. When I was in high school the freshmen team had 3 coach’s maybe 4 now I seen 6 to 7 just for the freshman, and for varsity and JV I will CG for any example because it where I went and I know how many I had when I played 25 years ago we had 6 to 8 coach’s total it depended on the year and now you might find that many coach’s just on one side of the ball. I truly believe their people out their the want to coach and are teachers,
If add up all the sports in the fall and band, with other clubs and extracurricular activities you are to find they theirs is a lot teachers coaching just not in football then add the Winter sports coach’s that are working on stuff for thier teams that is a good chuck of teachers coaching or doing other activities in the school.
football 20
Vollyball 4
cross country 4
soccer 8
golf 2
tennins 3
band 4
That is a lot of positions to fill, I also think a factor is coach only coach 1 sports now where years ago the head football would also be the head wrestling coach and head track coach. With sports become more year round coach’s are also becoming more specialist in one sport