You have to be suffering from a case of mild retardation to still be on the Mike Leach train in 2015. Let us revisit some facts.
A typical Texas Tech season in the late 1990's looked like 7-5 overall and 5-3 in the Big 12. That was while Spike Dykes was playing non-conference teams like Tennessee, Georgia, Oregon and NC State. When Mike Leach took over, he began to dismantle the out of conference schedule. By 2005 it looked like this: Florida International, Sam Houston State, Indiana State. But what REALLY got you people excited is the number of points he put up in those three games: 56, 80, and 63. Nevermind that he scored 17 against Texas and 13 against Alabama. You people really thought he was some kind of offensive genius because of that Sam Houston State score.
The typical comeback is "look at 2008!!!". Yep, in his ninth year, after averaging a 4-4 conference record for eight years, the stars aligned and he had a talented enough roster to knock off #1 Texas at home. What you people fail to remember is that he marched that team into Norman, OK three weeks later and lost by 40. And where were they the very next year? 3rd place in their division, just like before.
So the Mike Leach plan was: get automatic non-conference wins, win four conference games, make a bowl, and fool everyone with big scores against bad teams. Now he's giving up 60 points at home to unranked teams in year three, but people still think he is a good coach.