On the topic of Redskins HC Jay Gruden having a reputation for being "pass-happy":
The Bengals attempted 1,764 passes from 2011-2013. Coincidentally, that is exactly as many passes as the Redskins under Mike and Kyle Shanahan attempted. Gruden’s past and present teams tied for 19th in the NFL in pass attempts. The Lions led the league in pass attempts with 2,128 while the 49ers threw 1,430 times, the fewest in the NFL.
Peeling back the onion a little more, how often did Gruden call passes on first down? Since all options are open to the play caller, that’s perhaps a better indicator of his run or pass mindset. During his time in Cincinnati only four teams called fewer pass plays on first down than did Gruden. He called 595 first-down passes; only the Chiefs, 49ers, Jets, and Seahawks called fewer. The Patriots called the most with 831.
In 2013, Bengals threw it 55.0% of the time which was #22 in the league. The running game should get plenty of work in Washington, provided the team can stay competitive.