With the legal tampering period set to kick off free agency on Monday, ESPN pieced together a primer to prepare us for all the big moves. Included in the rundown are predictions on which teams will be the most active—and the Panthers are right near the top of the bunch: Expect Carolina to rebuild its defense because it badly needs depth.

The last time that we heard about Panthers center and pending free agent Austin Corbett, the team had pushed back a critical deadline on his contract so that they could buy more t