I'm not sure some of you understand what Kirk is getting at when he says "most representative".
He's saying when looking at both Iowa and Northwestern he saw two teams that were very evenly matched talent wise. One team won 10 games and the other won 4. His point being that the difference in win totals is in the execution. This is the way Kirk coaches. He will use Northwestern's team last year as an example for the Iowa team this year. For example... "Northwestern isn't any more talented than us, and they went out and won 10 games last year. Why? Because they did the little things it takes to win. They made big plays on offense when they had the chance. They got off the field on defense in key moments. They made big plays when they needed to."
In short, when given the chance Northwestern executed and Iowa laid an egg. Now obviously as fans we can all point out things aside from execution that are vastly different between the two teams. For starters, NW is running an explosive offense and they have the players to fit their schemes perfectly. NW also has a coach who is very willing to take chances. Iowa is trying to run a more explosive offense, but thus far it has resulted in short passes and almost zero big plays. Plus it doesn't seem like the Hawkeye players fit the system very well.
Those things jump out at me as big differences between the two teams aside from a simple lack of execution on the Hawkeyes part. Maybe the two teams are pretty close in terms of talent, but unfortunately talent isn't the only thing that matters. You have to find a way to apply it.
One thing Kirk failed to mention is Northwestern's superior coaching staff. Particularly when comparing the head coaches between both programs. I'm not even a Kirk hater but the difference between the 2 head coaches of Iowa and Northwestern is huge. Fitz is one of 3-5 guys in the country who could do what he has done with Northwestern.