The Panthers were hoping to resign Jordan Gross on the cheap for one last season in black and blue. His retirement put an end to this hope and left Carolina with a big hole at LT. However, there may be a familiar face who could help out in 2014: Free agent Travelle Wharton who used to play LT for the Panthers.
I know this isn't an ideal situation and he hasn't played T in a long time but he's probably the most affordable OL out there who is capable of protecting Cam Newton's blindside.
Wharton - Silatolu - Kalil - Chandler/KGB - Bell could make a serviceable o-line in 2014. It's certainly not a spectacular unit but it may hold until new rookies develop!