Feb. 4—Oklahoma was holding on to a two-point lead midway through the first quarter when Skylar Vann found Liz Scott for an open jumper. Two possessions later, Vann found room beyond the arc and extended the Sooners’ lead to seven. Vann, who has played as the Sooners’ first player off the bench all season, looked confident on both ends of the court early. After scoring two more times, Vann…