I wouldn't say Elliott is in decline and he should in fact be right in his prime for the next few yrs He might run less but should be more efficient, and hopefully breaks off some of those big chunk runs he was lacking last yr. I think the O-line will benefit greatly from having a super bowl winning coach at the helm and his schemes and innovative mind should help along their development. Big part of the reason Cowboys found themselves in frequent 3rd and 5 situations was due to unimaginative play calling on first and second down.