You see these types of coaching staffs in the high school game but not in the club scene. The prep coaches seem to focus on the entire package of training compared to the specialized emphasis that club coaches portray. You aren't going to make a living coaching high school soccer but you can make one coaching club. Many high schools get involvement from all aspects of the school and community. That is rare for a club to be able to generate any interest outside of whichever U13 or U17 team individuals are dealing with (and it's usually something different every year and from vagabond club to club).