John Mackey said he always reported to the the grocer’s board before his company was acquired by Amazon.con and that working for Jeff Bezos has not been that big of a change. “I always use this analogy, when you get married, do you change,” said Mr. Mackey.  “And the answer is, ‘Duh, if you don’t change, you’re going to get a divorce.’ So Whole Foods is changing, not because Amazon’s cramming a bunch of things down our throat, but because they do a lot of things that we want to take in.”