And where does he rank in minutes played? It's all tied to how much he's used, not how good he is.
And back to the magic number of 20ppg - Kevin Martin, Monta Ellis, OJ Mayo, David Lee, Brook Lopez, Bargnani, Blake Griffin, Amare, Stephen Jackson, Tyreke Evans, Chris Bosh, Devin Harris, David West, Ben Gordon, Al Harrington, Richard Jefferson, Corey Maggette, Boozer, Crawford, Marion, Bibby, Mike James, Antoine Walker, Marbury, Stackhouse, Jalen Rose... those are just a fraction of the players who have averaged 20+ppg over the last 10ish years.
Yes, most starters in the NBA could average 20ppg if given the opportunity. They would also mostly lead their teams to the lotto doing it.