I understand all of this, but you would assume that there are some qualified candidates who deserve their first or maybe second shot before you hire someone who has been unsuccessful 3 previous times. Could this even happen in the private sector? Would you hire someone for the exact same position that he was fired from for poor performance on 3 previous occasions? You mention Belichick, Levy and Carroll but they were not 3 time NFL HC failures when they were hired.
Maybe the fourth time is the charm but it's amazing to me that there isn't another candidate with a better track record to recommend him. It really seems like the major reason he's here is because McDermott knows him, Saban and Belichick like him, etc... old boy network stuff.