Nope, he's actually a very very good CB who got exposed in the Superbowl b/c he had ZERO safety help. In fact, IIRC, PFF had him rated as one of the best CB's during the regular season. The issue is he's a very physical and aggressive CB who plays with a mean streak. If he was playing for Seattle, in Seattle, he'd be one of the best CB's in the game b/c he'd be allowed to play physical with WR's at the LOS and aggressive throughout the WR's routes. Unfortunately he plays for us and as we saw in the Superbowl, he's called for P.I. on critical situations in which he played the same as the Raven's CB's but well within his rights and the rules. He's young. He won't get that call.
That said, IF Nnamdi beats out Rogers and we establish that aggressive style of CB culture
with the refs like how Brown-stain/Dick up in Seattle, we too will be allowed to play our own game and make our own set of rules. I think with Baalke's off season moves, he'd REALLY like to get much bigger, stronger, taller and more physical/aggressive at the LOS vs. playing 15 yards off on 3rd and 5 like we currently do with Brown/Rogers.
There is also a huge issue with ALL of our DB's and their "technique" last year that was especially highlighted in the Superbowl. Our DB's don't track the QB or the ball. They are only playing the body language of the WR's and that more often than not, meant easy catches for WR's and our DB's looking embarrassing (e.g. Culliver on Boldin/Jones on punt-like passes).
The other issue is that we had horrendous coverage ability by both Goldson and esp. Whitner. IF Reid can provide ANY kind of coverage over the top and esp. along the sidelines, suddenly everyone in NT will be talking about how Culliver has really stepped up his game. LOL