Tenuta and Van Gorder were both fools who kept trying to fit square pegs into round holes.
Tenuta was so blinded by his methods, that he kept foolishly running the jailbreak blitz every down, which cost us at least 4 games in 2009. While that kind of a defense can work, we didn't have the front seven personnel needed for that to succeed, and any defensive coordinator worth even half his weight would have made adjustments. The times that the defense performed their best (outside of the easy games) was when Tenuta accidentally had a moment of clarity and played a conservative read and react scheme.
Van Gorder was a moron for continually playing cover two, even against teams that were carving us up when we employed that scheme. He wasted Jaylon Smith's amazing talents, and if Smith weren't there, he would have been exposed in 2015.