Lower ranked recruits, but well disciplined in a fairly simple, but effective defense.
People--including myself in the past--have fretted about the lack of star power among UM's defensive recruits. But as Iowa proves, a program can still have an excellent defense without 4 and 5 stars populating the two deep.
Of course, you need superior coaching in order to do that. Do Gerg and and the rest of the defensive staff fit that?