If by by elevate we mean all pro productivity, I would say:
1. Edmunds- if he can finally break through and catch lightening in a bottle and perform like a Ray Lewis (without the murderin, sploosh) or a Patrick Willis, him shutting down the middle would be a huge help.
2. Groot- as explained by everyone else.
3. out of the gate? Elam. If he performs at a level close to what Tre did in his rookie year, all of those offseason WR pickups in our division would be rendered rather ineffective.