Something I was considering... Are you more worried about your own progress as a musician, or that of the band? Would you be happy if you got knocked down the line a few seats for not improving, but your band started to win competitions? Or would you be happier knowing you had improved as a musician, even if the band around you hadn't particularly changed? It seems to me that some people are happy to ride on the success of people around them, just so they can say "Well I play for [blah], we won [blah] you know!" whereas other players are just happy to play with any band, but are much more encouraged when they finally get to grips with a difficult technique, or they get the hang of a solo or a passage that they've been working on for a while. So which are you?