I wonder about his strategy. Vegan once-a-week? Sounds pretty dang lazy to me. I think he is a believer in 'slow and steady wins the race' and he is attempting to simply introduce people to vegan meals, but at the same time, if you are reading his books and articles, you are probably half vegan already! Not sure if I like his influences or not...
http://www.nytimes.com/2012/01/01/magazine/mark-bittman-going-semi-vegan.html?_r=2&partner=rss&emc=rss