I've watched Texas football for a long time now, including multiple periods that were not fun at all to watch, and it's not just the same thing over and over. There are specific internal and external circumstances, coupled with individual coaching strengths and weaknesses, that explain the fate of each regime. That makes us pretty much like anyone else. I know it's irritating to see Oklahoma have success on a continual basis, but the simple truth is that Stoops was, on average, a better coach than Mack. That's why Lincoln Riley also inherited a better setup.
Herman has got the job now. His fate has yet to be written. Maybe he'll right the ship and make us a contender again. Maybe he'll plateau at 8-9 wins and end up eventually fired. There's no way to know yet. It's fair to point out things you'd like to see, such as some movement on the defensive front. But it's Herman's job. He'll make the decisions and succeed or fail accordingly. No one says "don't watch," but you always need to find some aspect of watching that makes the inevitable ebb and flow of life tolerable.
Good luck.