I think it was Heupel.
We have criticized OC for years: Mangino, Long, Wilson, and, now, Heupel because all of them, however different they might have been in the past, now look the same. We get Wilson who had been totally innovative, and his play-calling looked like Long. We get Heupel, a disciple of Leach, and his play-calling looked like Long. Either Long has a very long shadow, or the continuity is Stoops keeping charge of the game plan of the offense. He's a DC, not an OC.
We have criticized OC for years: Mangino, Long, Wilson, and, now, Heupel because all of them, however different they might have been in the past, now look the same. We get Wilson who had been totally innovative, and his play-calling looked like Long. We get Heupel, a disciple of Leach, and his play-calling looked like Long. Either Long has a very long shadow, or the continuity is Stoops keeping charge of the game plan of the offense. He's a DC, not an OC.