Damn, you made me count. My son had 10 coaches in his club career, 3 in his last year. His first and last were the worst. I was critical of his first coach and at one point he told my U8 son "don't tell your dad anything I tell you". A couple coaches we really liked, but other parents couldn't stand the same coaches. Most understood soccer, but very few knew how to coach kids. He had a great young coach for a few months but he left to coach in the USL. He had the team performing way above their individual skills. The coach that took over was a complete disaster and the team never won another game after dominating the non-academy teams in the first half of the season. That was the final straw in my son's soccer journey.My son has had 6 (it’s going to be 7) coaches since he started travel (more than 1/2 of them having to move due to factors beyond his control). Out of the 6 two of them were great (both focused on development and took knocks on the wins as a result), 2 had their merits and demerits, 2 were downright awful. For the money we pay that shouldn’t really be the case.
Coaches in the other sports he has played, have on average been better than his soccer coaches. One totally unfounded theory I have is that typically in other sports you have more than one coach like baseball and football. In soccer you usually just have one coach. I think when you have more than one coach there are more checks and balances. Whereas, in soccer the personality and approach of one coach dominates the culture of the team, for better or worse.