For christ sakes, the team was 8-2 at one point last fall. The defense played more than well enough in those last two games to win. The team was just a few offensive playmakers short of going 10-2.
Kill went out and added the highest ranked running back recruit landed by any Big Ten team. He out-recruited Wisconsin, Nebraska, Michigan, Michigan State, and Indiana for Elmore. He picked up Holland Jr who blew up late in the year and looks to be a wide-out any Big Ten team would have been happy to take. And that's not counting Edwards or Wozniak who will coming off redshirts.
If Kill can go 8-4 with last years talent (including holding MSU and UW to 20 or less in two of the losses), there's no reason he shouldn't be able to reach 10 wins in the next two seasons with a more seasoned defense, the whole OL returning, and the offensive firepower he's added.