For years I have been listening to everyone say we should have picked Ngata over Whitner. Well you know what, this year is pretty much proving otherwise. Baltimore's defense is looking old and tired while SF's is flourishing right after they added Whitner. Linemen like Ngata wear down quickly plus they aren't as important in today's NFL. Stud DBs like Whitner make a difference on every part of the field.
Think of it like this:
Football players are like chess pieces. The pawns are up front, they are typically the first ones to move, but they are not able to do a lot of things. This is just like a lineman. DBs are like bishops and rooks and stuff. You never see them coming and you don't know what hit you.
Can we finally put the Whitner/Ngata whining to rest?