Duke has done nothing that we have not done. In fact, his tenure at Duke looks somewhat similar to CPJ's, only much öööötier and without really any signature wins.
His overall record there is 61-67.
He only made a bowl 5 out of 10 years.
In 2013, his marquee 10-4 season, the Coastal was probably the worst division in P5 with zero ranked teams. A Vad Lee led GT still stomped a mudhole in Duke that year, 38-14. Their non-conference schedule consisted of UNC-Central, Memphis, Troy, and Navy. They lost 45-7 in the ACCCG.
He's 4-8 and 7-6 the past two years, despite playing a weak OOC schedule and getting Wake Forest as their cross-divisional opponent, whereas we play Clemson.
Here are his ACC Coastal Division finishes:
6th
5th
5th
6th
5th
1st
2nd
4th
6th
4th
I think he's a pretty solid coach, but let's not act like Duke has reached some level we need to aspire to.