I was looking through the teams in the Play Now mode wondering which one I was going to play against. I hit LT to randomly pick a team. After hitting it a few times John Madden pops up for the Madden Dev Team with an overall rating of 99. I tried it again and noticed that you have to hit LT five times for the Dev Team to pop up. I'm not sure if this is an Easter Egg but it's something interesting I figured I would share.