By the same notion, last season just gives Sark an "incomplete". The things he's doing make sense, seem to resonate, and have worked elsewhere. Ultimately, games need to be won. That didn't really happen last season. We can offer reasons why, but it's time to start posting W's.
I'm currently eyeing the LT spot. I believe Kyle Flood is the best OL coach out there. I'm just wondering if Texas has the guy on the team needed to play LT. I see a lot of Texas fans arguing, "Don't worry! We signed absolutely dominant freshman OL players! They'll be here in the summer to fix it!". There's no sense in debating them, but this is NOT HAPPENING. These are truly talented OL players, and one day (perhaps quickly) one of them will be the future LT at Texas. However, a true freshman used to abusing high school defenders just won't hold up against 22 year old collegiate players used to the weight room, the play book, and stunting.
The Texas offense, with top talent QBs, RBs, and WRs, will go as far as the OL takes them. The OL is as good as its weakest link. Right now, that link is tied to the ability to play LT. If a large land mammal currently on the roster gets angry enough, Texas can be a transformative team. Until that happens, we won't really know how Sark could operate.