A bus driver is not a great term.
It means the player is limited and as long as the bus driver does not make mistakes; the team has a chance to win.
“But Jones has seen enough to satisfy him. He took umbrage with the categorization that Prescott is simply the “bus driver” of an offense centered on running back
Ezekiel Elliott running behind a powerful offensive line.
Jones: Don’t call Prescott a ‘bus driver’
“He’s not a ‘bus driver,'” Jones told USA Today. “He’s a weapon. And as mobility diminishes, then you’ll pick up where he is with that great decision-making, with the mind he’s got.”
https://sports.yahoo.com/jerry-jone...r-assures-hes-long-term-answer-001414003.html