Helu...
Helu was a better short yardage back anyway IMO. I have always thought that, sure Castille was bigger, but he seemed to be better on toss' and sweeps where he could get a head of steam.
Helu reminds me of Tiki Barber being a smaller guy who can really hammer out the short yardage stuff by just being patient and then finding the right hole and exploding through it for a few yards.
the question is, can Helu get the tough yards and carry the rock 14-20 carries per game for the season?
i think the answer is obvious, if you are going to make him your short yardage guy, then he can't be expected to be the every down back we need him to be. Castille had a knack for being THE GUY in short yardage plays and there is a price to pay for pounding the ball between the tackles, if done too many times each game, it takes it's toll. i would prefer to see Helu not be the short yardage guy on a regular basis.