I may be one of the few, but I agree with Scot on this one.
I sense a lot of people want to win right away, well there is more of a chance of that happening with a returning Rivera than it would with an entirely new staff, system, etc...
This very likely could be a three year process where Rivera and the Panthers finally get it right in the third year.
However, if the Panthers new GM decides to hire a completely new coaching staff that runs an entirely new system (pretty much everyone except Chip Kelly, Chip's offense is somewhat similar to our current one), then we are in another rebuilding mode, a.k.a another two more seasons before we are going to be a playoff team.
Give Rivera one more go at if the season starts off poorly (0-3, 0-4 etc...) just can him early.
The problem there is that if we roll into next season with Rivera on that tight of a leash (and you would need to as his MO to date is to win when it doesn't matter) you've effectively tanked the entire season if he screws up. You may as well just keep him as a lame duck because you're not going to get a new, quality coach midway through the season. So add another year to that turnaround time while we get the pleasure of watching yet another shitbag of a season from the Panthers.