The veterans will bring in more fans than the nobodies that casual fans don't know. The young guys need to be on RAW, because that's the show casuals are going to watch. Get them known for the future. Right now, how are you going to get a casual fan who only watches occasionally, to tune in to SmackDown? "Come see SmackDown, live on Tuesday nights! We have Baron Corbin, American Alpha, Mojo Rawley, Kalisto, Tyler Breeze, and Apollo Crews!" The casual fan's reaction is, "Who in the flying f*** are those people?". Replace those names with the veterans I'd move over from RAW (where they're just going to be buried anyway), and even if 25% of the casual fans will tune in to see The Dudley Boyz or Sheamus or The Big Show, that's more than 0%. Casuals are going to watch RAW regardless, what's essential is getting them to watch SmackDown. Young nobodies they don't know won't do that.