FAYETTEVILLE, Ark. — Once Arkansas one-and-done All-American point guard Darius Acuff proved himself as an unstoppable scorer, he made his act a tough one to follow. The Razorbacks' offseason conditioning program will begin towards the end of May with No. 2 overall prospect and Arkansas commit Jordan Smith, Jr. set to take over the reins as lead guard next season. Acuff made things look easy which makes things much harder on Smith, who comes to Arkansas with the expectation to not only thrive in Calipari's scheme but dominate opponents. That’s where the challenge begins because replacing Acuff isn't as simple as plugging in another ultra talented point guard and expecting the same results. Smith is a much different player who relies on his defensive efforts talk first while his offense comes along behind him. Arkansas Razorbacks' Darius Acuff against the Arizona Wildcats in the Sweet 16 of the NCAA Tournament in San Jose, Calif.…