Benny Benassi could play close the main stage while an act like Knife party or Moby plays in the Sahara. He has the fan base to do it. It's a similar scenario to when Tiesto closed main and 2manyDJ's closed the Sahara. Two dance music acts with different crowds.
i still say some of the live acts we currently have in the Sahara will have to play else where to make room for Richie especially if Major Lazer ends up in the Sahara, which i don't think they will. Major Lazer for a day time Outdoor set or nighttime Mojave set.