16. Tim Couch
A Cleveland Browns’ quarterback with the weight of a franchise on his shoulders after a solid first year? No, we’re not talking about Baker Mayfield. Couch saw his second year fall apart too but for very different reasons. He threw for 15 touchdowns in his first year with a total of 2,447 passing yards.

However, the Browns didn’t protect him properly. As a result, Couch absorbed a lot of heavy hits throughout his rookie season. These took their toll on his body and affected his sophomore year. A broken thumb cost him nine games while several other injuries prevented him from making the same impact.