Cena's money in big time matches, it's just that even then, he's still like half a step to a full step behind in those. Just take a look at his matches with Rollins, Cesaro, Bryan, Neville, Zayn, and KO, and I'd also add HBK and Umaga from years ago. He can tell he steps it up, it's just that he's simply not better than them. he can see the effort, but he'll never be Eddie/Benoit in the ring. You have to appreciate what he does bring. As a character though, I wish he'd get hit by a bus, since for every 1 person he somewhat puts over, he'll bury 10 more, INCLUDING a person he just over lol.
Also, as far as Velvet Sky, if you were to place her in the WWE, she'd pretty much be better than the Bellas. That doesn't say much, but I'd still rather see her in the ring than them. If i had my way, I'd trade the Bellas and Rosa to TNA for Brooke Adams, Taryn Terrell and Mia Yim.