Bars was a OG, not an OT (though I think he could have played OT too)
We have 2-3 solid options to replace him, but the "most ready" option (Ruhland) is not the elite talent that Bars was (though he's still a very good player and possible a fringe NFL guy) and the elite talents (Lugg/Banks) are RS Frosh who have been practicing primarily at other positions (RG/RT)
It's a definite loss, as he's an NFL player and potential All-American. But we're deep at that position.
I'm still praying that the MRI will reveal it only to be a sprang, instead of a full tear, and that he could return for the late season and/or bowl game