Let's break it down...
SIU 5-8...at MSU, DU, WSU, home vs. UE, CU.
Likely wins the home games and loses the road games...7-11.
InSU 6-8...at ISU, home vs. DU, BU, MSU.
Likely wins against DU, BU and losses to ISU, MSU...8-10.
DU 6-7...at InSU, MSU...home vs. UNI, SIU, UE
Likely wins against SIU, UE and losses to UNI, InSU, and MSU...8-10.
MSU 6-7...at WSU, ISU, InSU, home vs. SIU, DU.
Likely wins against SIU, DU, InSU and losses to WSU and ISU...9-9.
BU 7-7...at InSU, CU, home vs. UNI, WSU.
Likely win vs. WSU and losses to UNI, InSU, and CU...8-10
ISU 8-6...at CU, UNI, home vs. MSU, InSU
Likely wins the home games and loses the road games...10-8.
CU 8-6...at UNI, SIU, home vs. ISU, BU
Likely wins the home games and loses the road games...10-8.
This results in BU, DU, and InSU all tying for 6th at 8-10. InSU would get the 6, BU the 7, and DU the 8 the way it stands now as both InSU and BU would have swept DU. InSU would beat BU on tiebreaker points due to wins over CU and ISU.
So the key game for us is the game at InSU. Let's say we beat them and lose to WSU and end up with the same 8-10 record. And let's say that InSU beats MSU then to also end up at 8-10, with MSU also 8-10. Then you end up with a 4-way tie for 5th at 8-10, and BU would take the 5 in that scenario. Even if InSU loses to MSU, BU takes the 6 over DU. If SIU wins tonight, they could join the 8-10 fun, but as long as we win at InSU, we are golden in all tiebreakers. Win that one road game, and lose the other 3, and we still almost certainly avoid Thursday. Lose at InSU, and we may need to win 2 of the other 3.