The more I watch these, the more I feel like this is trying to get this formation on tape and getting Hawkins reps for the potential wrinkles with it. They just didn't feel confident to allow him to make the read on his own.
On all three of these calls, if you move it from a straight handoff to a ZR or RPO it becomes a much more dangerous play.
Also, this formation is where OU had several wide-open looks that Hawkins just missed on.
Funny enough, I think Littrell is taking more heat than he probably deserves. It is obvious that Hawkins is super athletic, but not ready and Littrell scaled down (and majorly changed) the O to try and make him successful against Texas. It looks like they installed what they could for him and someone made the decision to limit the amount of calls/thinking Hawkins got to make. It is almost like they said, primary and secondary read and then run on all passes, no RPOs and all LZs are precalled as either a handoff or QB run all the way upstairs.