Supposedly Brian, there was at least one incident where a couple of the TCB Band members threatened to quit over money. During the early part of 1976, both James Burton and Ronnie Tutt quit the band due to wanting more money as well as to pursue other musical opportunities. But right before the March '76 tour kicked off, James returned to the band. Ronnie however did not, thus the reason why Larrie London was the drummer for those first few shows of 1976.
As I said, this is the way it SUPPOSEDLY happened...if anyone has more or different information, I would definitely be interested in hearing it...