Key to the Bucs victory
1) Play a cleaner game than Washington
2) Don't lose on the OL vs DL battle. You don't need to win outright, but don't lose. Being competitive is enough
3) Play some defense. You don't need to shut them down completely. But don't force your Offense into a shoot out vs a very competent DL.
If they do that they win. If the D screws the pooch and lets WFT keep it close who knows.
As for The Team Formerly Known As Redskins or TTFKAR for short....
1) Get a big turnover, ideally a score
2) Win field position
3) Get pressure fairly constantly
4) Have your QB play an amazing game while the Bucs D under performs.