For better or worse, I shape the lives of America's youth one math class at a time, so I'm not always able to stay current with what's been posted on the board...forgive me if this is a total repeat. A theory:
Bill, John and BV have already worked out a deal to make BV the head coach in waiting next year as well as DC. This would have been done sooner, but BV wanted to give himself the opportunity to be a coach on a NC team, which another year of DeShaun Watson potentially gives him this year. This would explain why Hayes was brought back despite evidence suggesting he wanted to retire after last year. BV will take over the D next year, bring with him an offensive mind capable of putting together a game plan that doesn't completely boggle the mind, and Bill will ride off into the sunset with a team capable of making some noise nationally next year.
Holes: John Currie may not be capable of actually pulling this off. Bill may be too delusional/egotistical/old to realize it's time to call it a day. BV gets an offer he can't refuse from somewhere else.
What else am I missing?