I'm a big fan of Jurrell Casey and him along with Terrell McClain will provide an immediate upgrade along the defensive line and with those two picks you landed two starters.
Tandon Doss is someone I like that could come in and compete for the #2 spot opposite Steve Smith. Julius Thomas is a very, very solid selection for Carolina as he provides them with the type of dynamic pass-catching TE that they have lacked for years. He may take a year or two to develop, just like Cam will, but once he's there he will be a threat.
I like the value of Jeremy Beal and think he could be an effective rotational player. Burney in the 6th and Boren in the 7th are players that can come in and compete for back-up roles and you'll get some special teams potential with Kendrick Burney as well.
Overall it's a solid draft and I really how you addressed the Panthers needs along the defensive front while giving them a unique pass-catching TE that will be a red zone threat.
Overall grade: A-