Northwestern won the West for a few reasons:
1. Fortuitous scheduling- They didn't have to play Ohio State or Penn State from the EAST. Their toughest crossover road game came at a time when Michigan State's roster was just becoming a MASH unit.
2. More scheduling fortune- Purdue was not really hitting on all cylinders in week 1. If The Big Ten makes NW travel to West Lafayette in week 5 instead of week 1, Purdue kills NW.
3. Wisconsin forced to play their backup QB- NW somehow gets incredibly lucky and only has to face Jack Coan in his first career start.
4. Penalties - This stat is insane IMO. On one hand you can applaud Fitz and his team for not committing a lot of penalties. They only has 29 in 9 Big Ten games. But what's really bizzare is more than half their 3rd down conversions in Big Ten play came because of opponents penalties. In league play, they had 29 drives extended due to penalties by their opponents. To put that on't perspective, the Huskers had 9 third down conversions due to penalty in Big Ten play. This stat suggests one of two things; Northwestern has an uncanny ability to bait opponents into committing penalties or the officials went out of their way to throw them life lines.
5. Injured QBs galore - They played backups vs Wisconsin, Rutgers, Minnesota, and Sparty. They only allowed 7 passing TDs during league play. On one hand, their secondary is decent. However, they got very lucky not having to face very many front line QBs. Hell, they even caught a break facing a True Freshman like Martinez instead of a more experienced signal caller.
6. Fumbles- NW lost one fumble during the season. But they forced a ton. Iowa particularly fumbled their game away vs NW. This is one area where the Wildcats really thrived.
NW was really lucky this season. Their 2016 and 17 teams were both much better than this 2018 team, but the scheduling, the opposing injuries, and crazy penalty numbers propelled them to an 8-1 league record.
On a sidenote, this season is really all about Iowa's pathetic finish. In many ways, 2018 was Kirk Ferentz's worst season. The Hawkeyes have 5 Future NFL players starting on defense including two potential 1st round pass rushers. They have two future NFL tight ends, and 3 future NFL offensive linemen. They also had an adequate experienced QB with good running backs. Their schedule also avoided Ohio State, UM, and Michigan State while bringing NW and Wiscy into Iowa City. Pathetic showing by Ferentz.... give him another 500 k though.