I have found that the larger the system/hospital the more things a) aren't explained, b) dictated from on high. Big academic centers with multiple bosses/levels of bosses are the worst when it comes to this kind of stuff. I won't name specifics, but it isn't exactly hard to figure out... There was a vascular surgeon I know who left a job because there was a bishop in significant control of funding and they kept making all sorts of changes that didn't make any sense. Bishop mind you...
But, for every gripe that I hear physicians make, 50%+ are based on not understanding what is going on around them. The classic line I hear is, "I just want to go and operate." Well, that isn't how the real world works, you don't just get to go to your little hole and do the little thing that you want to do with no regard for anything else. Part of that means running the hospital and keeping the other hundreds of employees set as well.