Yeah, that's a concern, but on the bright side think about a team running into us when we are hitting. Our 31.3% from 3 against OU was actually right at our average. Think if we were "hot" (for us).
A "hot night" for us might only be what OU averages (45%), but if we could hit 9-20 as opposed to the 5-16 we got v. OU, that's 12 points there (even 7-16 is another 6 points).
Then if we shoot FTs at 72% (our season avg. is 66% and we were under 60% v. OU) and go 18-25 from the line, that's 5 more points than we got on FTs versus OU and not an unrealistic possibility.
Conservatively, we could easily have nights where we get 10 more points just by shooting better from 3 and the line. When (if) we have one of those nights, we would be in it with our D even against good shooting teams shooting well.