Dude, they are starting to stack up Quad 1 wins now, and will likely be favored in every remaining home game. If they won those last 7 home games and won 4 games on the road, you're not talking about a bubble team, you're talking about a team that will finish 14-6 in the league and a top 4 or 5 seed in the tournament.
Needless to say, they don't need to win 4 road games. IMO, they need to find 2 on the road to be safe.
More importantly, they need to avoid losing home games to the following teams:
- Minnesota
- Penn State
- Northwestern
- Michigan
- Rutgers
I think if they win those 6, find a way to knock of Ohio State and Wisconsin at home, they will absolutely have enough Quad 1 wins to secure a berth with a 1 or 2 on the road.
The good scheduling news for them the rest of the season is even road games at bad teams would only be a Quad 2 loss.