I totally get where you are coming from.
However, there are plenty of games this year where we surged ahead in the second half without dramatic changes to the gameplan. We had the 19-0 run against Rutgers, for example.
I did see Underwood putting different guys on Pickett. I think Mayer eventually slowed him down some. Problem is that once you are down 13 at half even if you make adjustments and improve to just playing even with the opponent in the 2nd half you will still lose by 13.