It always happens. Older guys talk about how the good ole days were the best and how these young boys can keep up. We're not complaining though. It makes for good conversation about different eras and isn't that what sports is about? With LeBron's Mount Rushmore comments and Magic leaving Kobe out of his "great ones" tweet, we look back to find other instances of retired vets criticizing today's stars. Bill Russell was a bit offended by James' omission, Kareem questions Andrew Bynum's heart, and Michael Jordan thinks he would beat LeBron if he was in his prime. Check out A Brief History of Retired NBA Veterans Beefing with Young All-Stars.