I'm looking forward to seeing how Tua's film looks this year with an improved OL, better Receivers, and a feature RB. I suspect our coordinators will put together a base offense that suits Tua and focus on these things we see here that he does well. It also won't hurt that he is another year away from his injury and much stronger overall.
Film is a great way to evaluate players. You can't see everything in real time that you can watching film. There is a reason every professional in the sport not only watches a whole bunch of film, but every organization in the NCAA and in the Pro's have a staff that does nothing but separate film to make it easier to break down as a full time job. It's among the best and most used tools in player evaluation.