I always liked coaches who worked based on age groups...when you're younger, you need more constructive coaching during the match when you're making mistakes so you know what to look for and how to fix it (compared to talking about it afterward when the kid has already forgotten the incident) versus older kids when you should let them play for the most part, bar a few comments here and there, constructive, but not mean.
I used to know a coach who would sit on the sideline and read a newspaper on the sidelines. I preferred to stand and watch and be attentive, but not trying to control the game so my kids knew I was paying attention and that I cared, even if I wasn't speaking.
