Yes. And of course- regardless of package- the OL has to be better and more consistent.
But I think the lynch-pin to a lot of the formations is at TE- most specifically Higbee. His emergence last year not only "gives defenses more to think about" in the passing game, but his ability to block also then makes keying run or pass much more difficult. He can line up 'in-line' next to the OT, as an H-back, in the slot, or even in the backfield. Combined with Everett's flexibility to even shift and split out wide and it creates a lot of opportunity- again IF the OL comes through.
