Ken Pom Assist % ratings say Ga Tech was never in the top 100 under Hewitt starting with the 02-03 season. But Mason was only in the top 100 ONE season under Coach L, strangely, after the Final Four. In 06-07 we had a 59.2% rate, good for 72nd in the country.
I don't know if that means anything or not. In my opinion the turnover margin + defensive rebound percentage is a better indicator. A turnover means no shot attempt. A defensive rebound means no extra shot attempt(s). With a positive turnover margin and good defensive rebounding, a team should get more shots at the basket than their opponent, which in theory should equal more points.
There's a lot more that goes into winning of course, but I don't see a huge connection between A% and winning.