Billy Gardell says it's not time to jump off the Big Ben bandwagon just yet ... but the "Mike and Molly" star admits the bandwagon needs one thing -- a good backup driver.
We got Gardell out in NYC Monday and asked the lifelong Steelers fan how he felt about the gut-wrenching loss to the Dallas Daks this past Sunday.
Pittsburgh is now 4-5 and a lot of people are wondering if it's time to start searching for the heir apparent to Roethlisberger ... now that his injury, and age -- he's 34 -- are becoming a factor.
Billy makes it plain ... Ben's still got his heart, but it might be time for the Steelers to find their Tony Romo ... a qualified and dependable backup.
It's funny 'cause it's true.