His dad may have been immortalized in the greatest book of all time ("Friday Night Lights", duh) and in this clip with just about the nastiest block I've ever seen, but it's Junior who is making waves - and now the door is open a complete tsunami.
O'Dell Beckham Jr. may be a rookie, but he's about to get serious targets and usage with Victor Cruz presumably out for a long time and Larry Donnell disappearing into the Witness Protection Program. Like Darren Sproles or Dexter McCluster, he's a dynamic talent that can lineup in a bunch of different places; just get him the ball in space and watch out.
It's on Ben McAdoo from here: either you use him like Sproles to great effect, or you waste his talents like C.J. Spiller and Cordarrelle Patterson and get yourself fired in the process.