Let me clarify. Stagnant = can't put a game clinching or winning drive together when they need one and can't punch the ball into the end zone when they do have the opportunity.
Buffalo offense scores 68 points in their lose to Western Michigan last year. However, they could only muster a field goal on their last drive and couldn't "put a game clinching or winning drive together when they need one and can't punch the ball into the end zone when they do have the opportunity." Buffalo offense was stagnant