My post didnt say HC's want to become Coordinators. It said there are Coordinators that would rather wait to land an ideal spot than just come to Buffalo to be a HC.
Haley, Gase, and Mcdaniels all off the top of my head have turned down HC interviews with teams at some point. So my response to the other poster about there only being 32 HC spots and any coordinator will jump on it I dont think is necessarily true. The really good coordinators are going to be a little more picky.
As for the HC that would rather be a coordinator than HC of the Bills that was Marrone.