Probably the biggest difference in the offense since the OL has improved and Barkley has taken over. It opens up so much of Shurmur's offense. There was nothing better than watching the entire front 7 of Washington and even the safeties shift in panic toward Barkley and be forced to scramble back helplessly in coverage. Nothing makes a QB look better than getting the defense to commit to play action.
That's what Coughlin was all about - SCARE the defense with a good running attack then defeat them over-the-top.