By Adam Zagoria of ZagsBlog PISCATAWAY, N.J. — John Calipari has had a slew of one-and-done players during his tenures at Memphis and Kentucky. But he has to go back to his UMass days to find a proper comparison for 6-foot-10, 220-pound Kentucky freshman Anthony Davis. “Marcus Camby,” Calipari said Friday at Rutgers at the first annual clinic to benefit The Brayden Carr Foundation. “Marcus Camby, same. [Davis] shoots it better. Marcus was bigger, but they’re both really good.” Calipari said Davis has worked especially well in tandem