You can pick anyone and you get them in their prime for just the remainder of this season. I feel like Boselli is the obvious answer. Although, imagine having Big John Henderson in the middle of that D-Line to start getting some more pressure up the middle.
This is the answer. Jimmy Smith put up 300 yards and 3 TDs on the 2000 ravens defense. Fred Taylor ran something like a 4.38 and Jimmy Smith could chase him down. It would be like having Tyreek Hill or Randy Moss for Lawrence to throw to.