Running a more advanced college style, fun and gun type system, could be the future for a lot of teams. Chip Kelly flamed out, but he may have just been too early. Get the players who a. have thrived in similar systems, and b. create mismatches with your "typical" NFL defenders and attack attack attack.
I mean, even imagine our no huddle/hurry up offense right now...Stew, McCaffrey, Fozzy, Samuel, Cam all capable of carrying the ball (in a variety or play designs). Now we have a couple guys with speed to stretch the field, or work short crossing routes and YAC galore. Meanwhile, KB and Funch will (hopefully) improve and be able to use their big frames to body smaller defenders. Olsen is Olsen. Defenses will have to play a guessing game and pick their poison trying to stop this offense when it wants to put its foot on the gas. A LOT of possibilities and freedom for this offense...potentially.