Many front offices struggle with quarterback succession because they don’t want to move on too quickly. Most rookies aren’t capable of replacing an elite starter like Roethlisberger. But when the veteran suffers a physical decline it can be too late (via CBS Sports).
Roethlisberger was terrible in his final two seasons for the Steelers after his return from injury. He aged quickly and his arm began to fail him regularly. One horrible performance in the playoffs against the Browns summed it up. Unfortunately, the two-time Super Bowl winner began to cost his team games.