PFT Live: Which coach has the hottest seat?

With the first week of the NFL season behind us, Mike Florio breaks down the five coaches that could be working on borrowed time. Panthers coach Ron Rivera is the lone holdover from the preseason’s hot list and sits atop Week 1’s list. Rex Ryan’s peril in New York has been well-documented, but Redskins coach Mike Shanahan has had the heat turned up.