If he's valued as highly as they say he is, that's precisely what they did for Ronaldo. Benzema made himself more of a team player so Ronaldo would get the glory. Wayne Rooney did the same at United while Ronaldo was there. Both these guys immediately looked better upon Ronaldo's exit because they became more important. Benzema would have to be willing to be second fiddle to Hazard for Hazard to be his old self.