Hey, at some programs a get back coach is a big deal. My church had a pastor once who coached at tiny Florala Alabama high school as a community coach while pastoring the local Presbyterian church. He was paid $100 a week during the football season to do three things: Serve as team chaplain, coached the offensive tackles (he had been an offensive tackle back in the day in high school) and to be the sideline get back coach. He told me once that the get back coach was the hardest job because Florala had a little head coach with a feisty temper whose lifelong passion was haranguing referees, umpires, side judges, head linesmen etc.
Which was all well and good except that the region officials rigorously enforced a "coaching box" with obligatory unsportsmanlike conduct penalties for 15 yards. Our pastor repeatedly told me that he had to hold the head coach's belt buckle and pull him back which was not that hard for the 6'3'' 235 pounds pastor on a 5'9'' 175 pound coaching dynamo. Every game, the coach would say Preacher let me go and try to pull away and every game the pastor would tug him back. He said that by the fourth quarter it was worse than hitting the blocking shed.