AMDOC is only 10 days, and aimed at O4 & O5 physicians. I haven't been to it, but it's probably at least a little bit useful. Looking at the outline it seems like there are things that would probably be useful to the average clinician with some admin collaterals. Then again, I got through stints as a dept head and director with only the solid mentorship of the people above and around me. I haven't done it and don't feel the absence.
A six month non-clinical course targeted at O3 physicians is beyond ridiculous. We're talking about people right out of training, still on the steep part of the learning curve, who need to be seeing patients full time. It's criminal fraud, waste, and abuse. I mean, six months is HALF of the time I spent at fellowship doing a high volume of complex cases, research, and preparing for and passing another subspecialty board exam. What could CCC possibly have that's more important than practicing medicine?
The condensed 2-3 week CCC mentioned upthread might be useful or not, I don't know, but it's probably not actively harmful. The idea doesn't fill me with disgusted rage the way a 6 month course does.