As my dd gets older, the more I realize, the younger age bracket coach's seem to coach like this, a lot. As the player's get older, I think the better coach's continue to coach, and maybe even something changes? At least a little, because I feel coach's will take more 'risks' with moving players as they age. Actually, 8u was the worst for my DD. While she started and played every single minute of every game, she never changed position (line up or in the field) all season and of course played behind the coaches kid (it made her a heck of a outfielder though because she was constantly anticipating missed grounders to 2B!). If I could go back in time, I would tell myself, "just suck it up, because it's not even possible that could happen ever again!"
Also, my sister and I always talk about youth sports. We agree, most of the time it's not the coach's kids or the studs who make it playing through college. We think it's just the player's ability to stick with it. So, the player's don't have to be the best, just keep consistently working on their game. Game time means something, but so does the work she puts in, in the off season and during the season off the field, as well.