A really good read and absolutely worth the time it takes to get through: http://www.stltoday.com/sports/college/mizzou/living-on-borrowed-time-sfa-s-keller-grateful-for-game/article_8cd82825-a411-5382-af9d-72a8dd28b38d.html

He talks about having given up the survivor's guilt he's carried for years since the Oklahoma State tragedy and how he's been happier. A couple fun stories in there too, like the time Mizzou students ordered anchovy pizzas to the team hotel when he was an assistant playing there.

I will say on a personal note, I had a lot of face time with Keller last year. He was completely worn down by the end of the season. His work ethic is incredible but he did not look healthy. A year later, he just has a totally different vibe to him. I don't think he ever lacked confidence, but he just seems totally relaxed this season. Whatever change he made, he seems much better for it.