You need a quarterback to compete in the NFL. It's a fact.
If you have a stellar defense, you can mask a mediocre quarterback, but that's about the best you can hope for. Unfortunately for the following teams, they don't possess that stellar defense and need to upgrade their quarterbacks.
But how will they get it done? Guys like Peyton Manning and Aaron Rogers simply don't grow on trees. Look ahead to see where they will find their next signal caller.