I think it's a real possibility. Cleveland is doing some weird **** right now and the word is that Browns players are PISSED that Chud got scapegoated. Two reasons I've heard why players are really mad: Chud refused to let them trade Josh Gordon and Banner came to him personally and DEMANDED that he cut Greg Little to 'set an example.' Chud told him to **** off.
Now, Greg Little might suck, but Chud wasn't the guy who brought him in, and telling your coach to cut a scrub you brought in 'to set an example of accountability' is pretty ****ty.
Cleveland's got problems. I agree that it seems unlikely that Mack leaves, but I won't say there's no chance.