The Wolverines blew out Iowa 42-3 two years ago and the Purdue Boilermakers stood no chance against them in a 43-22 result last season.
Some of Michigan's highest margins of victory came against Big Ten West squads this season. It beat Purdue, the Nebraska Cornhuskers and Minnesota Golden Gophers by a combined 108 points.
The Wolverines allowed just 30 points across those three matchups, a defensive run in line with the rest of their performances this season.
The Ohio State Buckeyes and Maryland Terrapins were the only teams to score more than 20 points on the Michigan defense this season.
Although those totals came in the last two weeks, Michigan's defense should not be viewed as vulnerable, especially against a lackluster Iowa offense.
Michigan can control the game through its rushing attack, led by Blake Corum, and we saw on Saturday, J.J. McCarthy is capable of big throws when asked.
