Replacing a legend is an unenviable task. Even though things soured in the final days of his 15-year tenure, John Calipari certainly fits that billing. Only Adolph Rupp lasted longer in the same seat at Kentucky. The next man to step into that role, Mark Pope, is toeing a fine line with his predecessor. The former Kentucky player is clearly appreciative of John Calipari’s accomplishments at Kentucky. Pope is also well aware of how badly this fanbase wants to hand him a loss next season when he returns to Rupp Arena on the Arkansas sideline. “We’re in the same league and we get to go head-to-he…