Some of the best musicians I have encountered have been a bit "flakey". They can be infuriating at times, but the reward for putting up with it can be musically (and financially) very rewarding. I've also met plenty who talk a good fight and are well organised, but who cannot cut it musically. It's a compromise. I, for example, am together, own an expensive PA and tend to end up organising things. However, I'd be the first to admit that I'm musically pretty ordinary. Each of us plays to our strengths. In any band, you need a mixture of all types - some who are musically inspired and some who can take care of business.