All came off the bench and manned up. Sure, Tate made a few costly mistakes but he did keep UM in the game. Khoury did a great job at center considering the circumstances. And Demens stepped in and filled the gaps and made some great tackles for a team that really is struggling to tackle.
addendum: Reason Kovacs isn't listed here is because he started. I am hailing those that came off the bench and performed pretty darn well for not being starters or getting a lot of playing time. But yes, Kovacs did a hell of a job and has a lot of responsibility put on his shoulders considering just how porous the D is. He gets no help what so ever.