Very true... Our linebackers ARE suppose to make the tackles such is the case with any team, but what our d-line is suppose to do is get the running backs going east/west. So that in doing so our speed at linebackers can make the tackles on those backs going east/west. Remember defenses are MADE by what the defensive front is, and yes we might have an unexperienced back 7. However we have a very veteran front four (3 seniors) which will greatly help our cause. I'm not saying Texas isn't capable of breaking 27 points because they are, but rather against a school known for defense and for a team losing their star players (Vince/Romance/and The tight end) it might be unlikely.
Yeah sure AJ and Bobby Carpenter played great last year, but lets not forget that our defensive front did win the battle against your o-line (The same can be said for your d-line as well). If we dictated what your offense did last year with the d-line we had, I think it would be safe to say with a better d-line this year we PROBABLY COULD have the same success. So again I realize our linebackers were fantastic last year, but without our d-line they wouldn't of had the same success (Look at Iowa from last year with Hodge/Greenway after they lost that good d-front). On the flip side, a veteran defensive front can make young linebackers look like all-stars....
Also just because the d-line isn't recognized for making tackles it's not like Texas will be getting to the 2nd/3rd level every play. The hole's are suppose to be stuffed by the d-line and make the running backs look for more space to run and that's where the linebackers can react and make the tackle. However, the d-line will make thier plays count on that.