The only insulation Martz has is that he will make it through this season, while Nolan could be gone mid year if they come out struggling.
I think Martz believes that JT O'Scrubbivan gives them the best chance to win week 1, and he's probably right. The problem is that even if JT is everything they want him to be, it's not enough to make this team a contender.
The move is not in line with the should be long term goals of the organization; developing your most talented players.