Never said anything about Bubba not being a good coach. I just said he doesn't present himself with that killer instinct. When I heard Mike Houston talk in a post game interview, back when he coached The Citadel, after they beat South Carolina to finish the regular season in 2015, I thought he oozed killer instinct. Just a different type of personality and coaching style.
Like you said its not all yelling and screaming. That's all Bo Pelini does and he doesn't have killer instinct, he's just a JackA$$