Valentine should quit. If he doesn't quit now, he surely will quit at the end of the season.
He's a wordy guy, and he has been eviscerated for every word he has said this year--not only by the media but his own players.
It was impossible for a new manager to come in and change the climate, with most of the rest of the organization left intact--and rigidly status quo. It was LL/Henry's great failure to recognize after last season.
This team has been allowed to get out of control, and I doubt any manager right now can fix it.
They will have to clean house higher up, and restore some discipline to the organization. I don't have any answers, but if I were the owner, I would be talking privately to outside consultants about what to do. I don't think the present management can resolve the situation.