UPDATE: Shawn Ryan, who, like Kurt Sutter, also got his big break on FX with The Shield, also took to Twitter to criticize AMC over showrunner Glen Mazzara’s departure from The Walking Dead. “AMC, WTF? Common knowledge that AMC cut Breaking Bad shorter than it should have been. Now you have creative differences w/ biggest hit’s savior? With FX, Showtime, HBO, Starz, Cinemax, A&E, TNT and others to sell to, it’s a real question now why good show runners should sell to AMC?”

PREVIOUS: Sons Of Anarchy creator Kurt Sutter has never been hesitant to tell people how he really feels and today he really let AMC have it over showrunner Glen Mazzara leaving The Walking Dead. Taking to Twitter on Friday, Sutter called the network executives “small-minded, bottom-line thinkers who have no appreciation or gratitude for the effort of its creative personnel.” He also warned that without Mazzara at the helm the “future is dim” for The Walking Dead – and that’s the nice stuff. Read all of what Sutter had to say:

AMC is run by small-minded, bottom-line thinkers who have no appreciation or gratitude for the effort of its creative personnel. Time and time again we see events like what happened today with Glen Mazzara. They continue to disrespect writers, shit on their audience and bury their network. Mazzara took the work-in-progress that was “Walking Dead” and turned it into a viable TV show with a future. Without him, that future is dim. Showrunners are not development executives, we’re not cookiecutter douchebags that you plug into a preexisting model. TWD will suffer. Even Zombies need consistency. “Mad Men” and “Breaking Bad” will be gone soon. So will AMC. I hope their f*cking stock takes a dive and the shareholders line up (Josh) Sapan, (Charles) Dolan and (Charlie) Collier and shit in their open hands. C*nts.

Deadline's Dominic Patten - tip him here.