I think if the front office wants him gone, he will be given a chance to resign and save face. PC has already shown he's a good leader like that. There's a couple of reasons I think he has to go aside from the final offensive play.
First, he has been inconsistent at best during his three years here. Not everything he's done has been bad, but it's felt average. It doesn't feel like he's been able to consistently game plan around opposing teams' weaknesses. Games that do break open seem to break open because play makers like Russ and Marshawn willing it to happen (or our D creating scoring opportunities), not because our scheme has exploited the other team.
Second, whether or not Lockette could have and should have gone at that slant harder, as a leader, you must deflect that question back on the coaching staff. I don't think he said it in spite to throw Lockette under the bus, but it sounded horrible. The team was already raw and expressing a lack of confidence in the call. The worse possible thing a leader can do in that situation is put the blame back on the player. Even if it was 100% Lockette or Wilson's fault, which it wasn't, it's terrible leadership to call out a guy like that. It will be hard to repair that with the locker room.
Passing on that down wasn't a big deal for me. It's the play call itself that was frustrating. We had other options for pass plays there, options which would have been safer and mitigated any risk at all for an interception. And it's not just that one play; I don't think Bevell called a good game in general. There were a few times early in the game where I was baffled to see Walters on the field in a critical down. I can't remember our TEs have any impact at all. Very little RO, and I didn't see any RO with a pass wrinkle. The offense went full Packers at the end of the 3rd once we were up by 10. In short, the game summed up everything Bevell is - baffling and inconsistent.