Shannon Sharpe Ethers Big Ben 'Finger Pointing, Terrible Leader'

Shannon Sharpe just went scorched earth on Ben Roethlisberger ... saying the QB is a "terrible leader" who's the problem in Pittsburgh 'cause he's "a finger pointing, divisive, selfish player."

Of course, seems Big Ben would disagree ... 'cause the Steelers superstar said on a radio appearance this week that Le'Veon Bell deserves blame for Pitt's demise this season.

"It hurts you when you don’t have one of the better players in the game,” Roethlisberger said ... “but I think the biggest thing that hurts us was that it was a distraction."

Sharpe couldn't believe the QB went after the team's star running back ... so Sharpe blasted HIM for being the real problem in Pittsburgh.

"Big Ben is terrible…