He was asked about this very issue, and addressed it directly. He said the Michigan coaches don't even talk about Ohio State's problems, they talk about what Michigan has to offer. This whole paranoia that Michigan's success in recruiting Ohio players depends on what happens to the Buckeyes is ridiculous. The fact is Michigan always did great in Ohio, but when Tressel came along and turned his head to all of the shenangigans, and let the players tell the recruits all the extra stuff they'll get when they get there, that is what changed things. RichRod then de-emphasized Ohio, and that made it worse.
Hoke will do great in Ohio because he is a great recruiter. There's no need to negative recruit. He's a positive guy and he is a positive recruiter. What is really going on is captured in the comments of Tom Strobel: Kids are raised in Ohio to hate Michigan, but once he got up to Ann Arbor to see the place he realized how silly that is, and how Michigan is just a much better degree to hold than one from Ohio State. Hoke's strategy is to get Ohio kids to make the drive north and see what Michigan has to offer. Once that happens, we'll be fine going head-to-head with Ohio State on recruits, no matter who their coach is. And they won't be able to cheat anymore, or throw tattoo and bong parties, and Michigan will be back to attracting great Ohio players every year, as we always have -- because it's a better school with much more to offer, not because of the NCAA.