The question of the week: Who is most responsible for the Jets' downfall?

Mark Sanchez or Tim Tebow? Tim Tebow or Mark Sanchez? One or the other. Well, as SB Nation New York's Chris Celletti so eloquently put it, the New York Jets' problems go deeper than that. In Rex Ryan and Mark Sanchez's first two seasons, the team went to consecutive AFC Championship Games, but things have fallen apart since then. What happened? Who's to blame? Do we start at the top, with owner Woody Johnson, who was most likely the driving force in bringing Tebow to New York? How about Mike Tannenbaum, for constructing this very flawed team? Or do we keep going down the list to Ryan? Does Sanchez deserve the blame he's been getting? What do you think?