It's interesting that with all of the talent and money that the state of Texas has, their teams haven't won more championships.
I'm not surprised to see a Bama fan say this given how many questionable titles Alabama claims and that bragging about them is the root of most of your fan base's self worth. UT could claim a lot more.
Who else besides Mack Brown and Darrell Royal have been great coaches at Texas?
Dana X Bible is one of the legendary coaches of all time. He coached at both Texas and A&M and even a year at LSU.
Your comment also shows the folly of judging coaches solely on titles in a sport where the National Title has not only always been determined by a popularity contest, but has shifted over time.
For example, Fred Akers was a pretty good coach for UT. He led a #1 ranked team in 1977 to the Cotton bowl, where he lost to Notre Dame. Just 4 years earlier, when 1977 Heisman winner Earl Campbell was HS Sr, Bear Bryant had a #1 ranked team lose to Notre Dame in the Sugar Bowl. However, in 1973 the UPI (coaches poll) still did not do a poll after the bowls, so Bryant gets a split title with an undefeated ND team he lost to in a bowl. The UPI was so embarrassed they started awarding the NC after the bowls like the AP unfortunately for Akers. This was Bryant's 2nd title after losing a bowl and the first of 2 he split with a team that beat him. Royal also had a title with a bowl loss.
So besides Royal and Brown, count Bible and Fred Akers.