What other hypothetical things are happening? Does he lose all the other games? Because then even if it cancels out the NIU game it doesn't really matter.
Look, its about weighing the whole set of evidence. Even if a miracle occurred and we got to 5-7, would that offset the under-performance of the last 3.5 seasons? Do you want to rehire a coach who managed to win the games that mattered only when his head was on the chopping block (because what happens if you ever extend him again)? Do you ignore the preponderance of evidence and hope that he catches lightening in a bottle to end the season (knowing that its more likely that he doesn't)? Or do you cut your ties now, calm the fan-base, and get a head start on all the other schools who will have vacancies?
It seems pretty clear where the U and most fans come down on this one.
I don't know if I would call the past 3+ seasons under performance. I think if you look at it from an objective standpoint that the talent was very bare when Brew arrived. The W-L record for 2007 was unacceptable and ended any 'honeymoon" period Brew had with the team.
For me 2008 and 2009 were typical season of the last 13 or so years. A games in which they team was blownout, but finished with a 3-5 BigTen Record. Up to this point had not beat a rival, but WI and IA were relatively strong compared to the history of their programs. These losses were not a good sign, but he still deserved to coach a full five years.
2010, has been unacceptable so far. The defense I believed was young but talented. I thought it would take its lumps early in the season, I did not think this would lead to a loss against USD. I think that significant improvement needs to be shown for Brew to keep his job. For me, a 3-5 big ten record would be enough to give brew a fifth year which must be a break out year.
I do not believe you get any sort of advantage in the hiring process by firing your coach early.
In terms of "calming" your fan base this is done with the hiring of the new coach, not the timing of firing the old coach. Tickets for this year have already been sold, there will be minimal financial change from ticket sales. Renewal rates will be based on the new hire not the firing.
If the coach starts winning games it won't be because his head is on the chopping block, it will be because a young defense gains maturity and starts playing better. That would be a sign of improvement.