The Carolina Panthers spent pretty much everything they had in free agency on the defensive side, adding a linebacker, two interior defensive linemen, an edge rusher, bringing back a cornerback, and signing a safety. One of those moves has the potential to be really good. In fact, ESPN’s Matt Bowen listed a crucial free agency signing by the Panthers as one of the best and most impactful moves any team made this offseason. The Panthers gave Tre’von Moehrig a $51 million contract because they desperately needed help on the back end.