The Monitor reports: The Rio Grande Valley Vipers on Tuesday announced the hiring of 13-year NBA veteran Robert Pack as an assistant coach. “I could not be more pleased than to attract Robert to the Valley as our top assistant,” Vipers coach Clay Moser said. “He is truly a star on the rise in the coaching profession. Beyond being an outstanding NBA player for many years, he also has international playing experience. He is current with the game today, and his story will resonate with our players. He is a great person that has persevered through many trials and tribulations, a testament to his character.” … The Rio Grande Valley Vipers are a member of the NBA Development League (NBA D-League).