Much of the AFC North has been focused on replenishing their defensive lines. The Cincinnati Bengals, for example, lost on Andrew Billings, but upgraded with D.J. Reader. The Cleveland Browns, meanwhile, have their starters, but bolstered their depth with Billings and Adrian Clayborn.
Arguably the most aggressive team has been the Baltimore Ravens, whose highlight move was the acquisition of All-Pro Calais Campbell, trading for the 33-year-old defensive end by giving up a fifth-round pick to the Jacksonville Jaguars. They also added Derek Wolfe after a deal with Michael Brockers fell through, though they also lost Michael Pierce and traded Chris Wormley.