I don't disagree with your points. It's just that when a thread is titled "Hoke besting Rodriguez..." and then uses the bluntest possible and least useful measuring stick to say that Hoke is better than Rodriguez, then the things you suggest in your very sensible post are not being done.
The futility of this kind of argument is that the only thing that makes sense is to compare actual Hoke/Borges and actual Hoke/Mattison with hypothetical 4th-year Rodriguez/Magee and hypothetical Rodriguez/GERG (or his replacement). In the NFL when you have a team of 3 to 15 year veterans, it makes sense to compare from year to year. But when you have a team of 18-22 year olds it does not make any sense at all.
Two other points: the B1G was good last year. It sucks ass this year. So there's that.
Second, and this always makes me completely insane, several people have pointed out that M's defense got worse last year as the year went on. But our schedule got tougher as the year went on. If M has trouble with Nebraska and Braxton Miller's legs, will that mean our defense is getting worse? No, it will mean that Nebraska's offense and Braxton Miller's legs are good.