Theres good defense and then there's just a bunch of mistakes by the offense.
Playcalling on both sides was atrocious especially for Washington. They had a full week to gameplan around their injured RB and they came up with...nothing. They didn't keep TEs in to help their injured RB protect their QB and he got hammered over and over again.
When he did get passes off he missed open receivers or they just dropped it.
Michigan was okay by had no answers most of the game. If Washington had decided to keep a TE in to block, they probably would have won the game. They had like 8 chances in a row to do something, anything and they chose not to adjust.
EDIT: I just realized you're the Tommy Rees apologist. Now it makes sense.