Texas schools are big on recruiting and not so hot on coaching. Part of this comes from the philosophy that if a 5-Star high school recruit doesn't pan out, then there is another one right behind him. One only has to look for an example of this as far as Texas University and their quarterbacks since Colt McCoy. Gilbert, McCoy, and Ash never improved. Now compare that with a 2-Star recruit from Florida named Lavonte David who gets coached up...Except that this vaunted Texas pipeline also includes hundreds of players that are quality college players that don't make the NFL
Yes, Texas has a lot more likely recruits by total, but Texas is bigger both in size and population. Texas has a population of over 25 million. Nebraska has a population of less than 2 million. All things being equal, the State of Texas should always produce 13 times more quality players at the college and NFL level...I don't see that, but there are a dozen different ways of looking at that.