Hitler's problem, IMHO and only militarily, was that he was right more often than not in 39 and 40. He failed to figure out why, so. As a result, he thought working against military expertise was the silver bullet. That, and that there never was a real chance to win a conventional war against the allies.
Another general that comes to mind os Field Marshal Haig. He wanted a break through on the Western Front in WW1. He got a war of attrition, which worked for him and not for the Germans. So he thought going for a break through was the way to go. It worked in the end, but for the wrong reasons.
That being said, a lot of German WW2 generals are over hyped, first on their memoirs and then by anti-communist "propaganda".