“Run it back!” That’s the phrase that was jokingly used by Los Angeles Rams coach Sean McVay at the team’s Super Bowl victory parade to stave one of the greatest defensive players off from potential retirement. Indeed, on a makeshift stage in front of thousands of fans outside the L.A. Coliseum, with the Olympic torch lit, McVay playfully McVay gestured to Aaron Donald as the Rams defensive tackle was finishing a speech. “We built a super team, we can bring the super-team back,” Donald said. “Why not run it back? We can be world champs again!” The scene seemed to diffuse rumors that the 36-yea…