 This is Morning Edition from NPR News. I'm Layla Faudel. And I'm Michelle Martin. How do you walk away from more than $30 million? I have no idea, but my next guest just did. Darren Waller was supposed to be the starting tight end for the New York Giants this season, but earlier this month he announced his retirement at the age of 31, leaving potentially $30 million plus on the table.