No for a few reasons:
1) Revis can handle Marshall, Cromartie can handle Bess, and Lowery can handle Camarillo.
2) We need a pass rush and youth along the dline.
Now if they feel a cornerback is the best player available, then that's fine. I just think that if you look at whose likely to be there at 29, corner would be more of a reach at this point.