Both Roy, and his mentor Dean disliked calling TO's because it allows the other team to set their defense and also contest the inbounds pass giving yet another opportunity for a turnover.
I can see Dean not wanting to call TOs, because back then a team only got 3 per game. But up until this season RW has always had 5, including one "use it or lose it" in the first half.
As I've said before calling a TO is not a guarantee to stop the other team's run, or get your team hot, but just might be worth calling one every now and then to see if anything changes! Going down 28 to KU in 2008 FF, with no TO will always be in my mind!