I don't think that's the question at hand, and most sane Duke fans agree with that statement. The main statement however deals with Coach K's down years vs. Roy's down years. Roy gets blamed for not being able to coach, not calling his timeouts, going to NITs yada yada. Duke gets caught by a VCU or Lehigh, but it's at least in the tourney.
K/Duke are consistently good to great. Roy/UNC has become a bit of a roller coaster, as it seems like they're either a favorite to win it all (05/07/08/09/11) or NIT bound and playing terrible (10/12). Obviously the down years are few and far between, but Roy has also been known to choke during the tourney (Georgetown game TH's soph. year and the Kansas game the following year).
Roy has never been a great in game coach, and his timeout usage is frankly baffling for a guy who has coached so long. But what is does well he is very good at- recruiting and developing players in his system. Problem is his system needs a good PG to run it- it looks great when Felton, Lawson, or Marshall are running the show, but quite different when you hand the reigns to Bobby Frasor, Larry Drew, or Dexter Strickland (and perhaps Paige, but I'm still holding out hope).