8-4 in the first year in the Big 10. Finally winning with his recruits (after having a bad season with historically bad injuries and the former coach's recruits), about to go to two straight bowl games including a pretty reputable one this year. Coaching a program that is historically mediocre. And people can't run him out of town fast enough because he replaced a mediocre coach who was doing nothing to actually advance the program and because he made a few gaffs while speaking to the media when he first arrived.
Tough freakin' crowd.
This is clearly his best year, but it's a pretty weak schedule this year. If Edsall supporters are giving him a pass on the last two years because of injuries, then you have to similarly discount the positive record this year due to the mediocrity of the teams we've beaten. We beat Iowa, Michigan, Penn State, Indiana, and (presumably) Rutgers. Iowa was a really nice win. Michigan is 5-6 overall and will go 3-5 in conference and won't make a bowl game unless they win at Ohio State. Penn State is 6-5 overall but will fall to 2-6 in conference unless they beat MSU. It's nice beating both of those historically great names on the road, but neither is a good team this year. Indiana is winless in conference, 0-7. Rutgers beat Indiana and Michigan, but unless we lose to them they'll also be 2-6 in conference.
We beat teams we should have beaten. He's gotten us to the point where we should be at least a middle of the pack team, basically where the program was before he took over and inexplicably broke us down into a joke. So we beat all of the bottom dwellers. We got absolutely pasted by good teams. Outscored 141-46 against OSU, MSU, and Wisconsin.
They've done a decent job this year, but finally being halfway decent in your 4th year isn't a good job overall. He only "deserves" an extension in the sense that perhaps he doesn't deserve to be fired right now, and you have to give him an extension to avoid lame duck recruiting. If that recruiting aspect wasn't a factor, under no circumstance could anybody sanely argue that he deserves an extension.