One WNBA star replaces another on the Gregg Popovich’s bench. A gaping hole was left on Gregg Popovich’s bench when Becky Hammon left to take the job as head of coach of the Las Vegas Aces — and went on to win the national championship in her first season! — but the Spurs are keeping the WNBA pipeline open with the hiring of Candice Dupree, per Shams Charania of The Athletic. The San Antonio Spurs are hiring former WNBA star Candice Dupree as an assistant coach on Gregg Popovich’s staff, sources tell @TheAthletic @Stadium. Dupree was a seven-time All-Star in…