Bill Dooley recruited LT, but it was under Crum that LT became something beyond the best.
Coach was indeed dull. The very definition of dull midwestern. And he was very hard-headed: what worked for Miami of OH in the 70s was going to work in the '80s at UNC. He half-heartedly tried to switch UNC to a Veer, which made his Woody Hayes-era midwestern sense of football kick in doubly hard. Over time, the dull midwestern personality and the midwestern determination to do it as, he assumed, midwesterners always had and to better effect than anybody else could do it, did him in.
He is the last UNC coach to win the ACC - with LT. He also rightly summarized what he found most difficult in being UNC football coach: on Saturdays, UNC football fans want you to be Bama or OU, and the rest of the week, the administration and faculty want you to be Ivy League.
Crum apparently felt that same issue was not true of Ohio St or even Michigan: meaning that Crum knew their administrations were willing to give nothing but lip service to the Ivy League talk and were basically the SEC-North.
I liked the UNC on the helmets as a change for awhile, but the interlocking NC is perfect.