I'll start by admitting that I haven't always been the biggest fan of Coach Marrone's. I love the intensity he brings to his job and his enthusiasm for the game, but sometimes his weakness at managing the play clock and pace of the game goes beyond the pale (see: punting on fourth and one, not calling a timeout when special teams took the field against the Chiefs offense, etc.).
That said, it seems he really has the Bills by the horns right now with this opt-out clause. He can use his leverage to demand a contract extension from the new regime - whatever your opinion is of Marrone, I think everyone agrees that you don't get a contract extension for peaking at 9-7 and a game out of the playoffs.
Ultimately, the fault for this situation has to lie with Brandon, as he was overseeing the football operations during the final years of Ralph's tenure, and could have held strong on offering a three-year contract that didn't give away the Bills' bargaining power.
Whatever ends up happening in the next couple days with Marrone, Whaley, et al, it's now clearer than ever before for me that Pegula needs to completely divorce Brandon from the team's football operations. Let him handle the things he's good at - namely selling tickets and marketing the franchise - but his involvement in the football operations side of things has gone on far too long. Please stop letting him completely undermine the football side of things.