Not to take away from what Nick Saban has done at Alabama, but Shula built his first title team for him. Shula took a job no one wanted and was a step or two away from enjoying true success. But as I recall, Shula didn't quite have the charisma and ability to take that team over the top like Saban. And I think that situation shows how men have limitations. Shula does well with fewer distractions, thus his penchant for being a good OC. Saban is a god in college football and in situations where people MUST follow his lead. Saban does not do very well in situations where grown men can exercise the choice to follow him or not.
To reiterate what Hayden said, "Enough of hiring position coaches and coordinators".
We need a real leader of men. Not someone who's reached his ceiling. Someone who has no ceiling.