5-0 with warts is better than the 2-3 record with warts that we had last year. NU's 5th win in 2015 came on November 14th - a full 6 weeks from now. NU should have been 5-0 last year at this time, but shot themselves in the foot over and over. This, NU still shoots themselves in the foot, but at least this year they eventually stop shooting.
For a long time, we've seen opponents seem to sit back and wait for NU to screw up so badly that they beat themselves. This year - while still mistake prone - they have tightened up enough that the other teams have been making the catastrophic errors on which NU pounces.
The rest of NU's season might hinge on whether Carter and Westerkamp can continue. Those two are giant weapons for NU. Opposing defenses will struggle accounting for those two along with Armstrong. Without them, NU become exponentially easier to defend. A healthy WesterKamp, Carter, (and throw Moore in there, too) may be the difference between a 8-9 win regular season and a 10-11 win regular season.