John Calipari can turn a press conference into a filibuster. Larry Brown has known Calipari for 30 years and is well versed on his “communication skills.” “He talks nonstop,” Brown said. Yet the unthinkable happened recently: Calipari was at a loss for words.On May 20 at the Ritz-Carlton Sarasota, Calipari was asked about what his mother, Donna Mae Calipari, would think about her son being honored at the Sixth Annual Dick Vitale Gala, benefitting the Jimmy V Foundation for Cancer Research.