Probably just as important for Krzyzewski, the Blue Devils got off to a solid start as they began their quest for an unprecedented sixth straight ACC title with their 16th straight win over the Tigers (7-5, 0-1).
Clemson has long been one of Krzyzewski's easiest opponents. He's won 40 of 49 contests, his most victories against any team.
Ewing and Redick were big reasons why, combining for six 3-pointers.
Redick had a 3-pointer and another basket as Duke took a 19-6 lead midway through the first half. When the Tigers scratched back to 22-15, Redick followed with a 3-pointer and Ewing a driving layup to restore the big margin.
Redick's driving basket three minutes later gave the Blue Devils a 37-21 lead.
And they didn't stop after the break. Redick had an uncontested layup and a short jumper, and Duke led 48-31 with 16:23 left. Ewing had a basket and a 3-pointer, Redick added another shot from behind the arc and Ewing returned for one more 3 as the Blue Devils led 67-46 midway through the final period.
Because Clemson couldn't contain Redick, the crowd tried to, yelling "Air Ball" much of the second half whenever the ball hit his hands.
Sharod Ford had 12 points to lead Clemson. Freshman point guard Vernon Hamilton , who came an assist away from a triple-double Tuesday night in a win against Boston College, was held to 2 points on 1-of-6 shooting.
If there was ever a good time for Purnell to get blown out at home by a conference rival, this was probably it. Most of the fans at Littlejohn Coliseum were still buzzing about the football team's 27-14 Peach Bowl victory over No. 6 Tennessee the night before. Indeed, the loudest cheers came at halftime when Tigers football coach Tommy Bowden strolled out to accept the bowl trophy.
Before coming to Duke, Krzyzewski was 73-59 in five seasons at Army.