Draymond Green and Austin Rivers’ feud has become a hot-button topic, and a former Heisman trophy winner —  who knows a little bit about criticism — is adding their opinion to the fold.Former NFL quarterback Cam Newton discussed the situation on his podcast, “4th & 1 with Cam Newton” (h/t Awful Announcing).“Every day you look up, it’s a new beef, it’s a new disagreement, it’s a new person in their feelings about another said person,” Newton said.Rivers got Green’s attention after discussing the four-time NBA All-Star’s belief that Warriors coach Steve Kerr might have “hindered” his career, and Green snapped back comparing his NBA career to Rivers’.“That’s what you’re going to keep getting from these athlete-led platforms who take offense to what’s said,” Newton said. “But to the athletes, you have to understand, you’ve got to be able to have diversity in your content. Because if you’re just going back and forth saying, ‘I, I, I’, ‘me, me, me,’ that’s not a sustainable recipe, brother.”Green...