When Pitino was at Kentucky, he twice beat Calipari’s UMass teams. When Calipari was at Kentucky and Pitino was at Louisville, Calipari won both times.

Rick Pitino made a name for himself by taking the Providence College Friars to the Final Four in 1987. Almost 40 years later, he's back in the Big East

So in a sport in which the coaches long have been the most familiar stars, look who’s roaming the halls of Amica Mutual Pavilion on practice Wednesday: 66-year-old John Calipari in Arkansas cardinal (still an unusual sight),