Few details of the upcoming PGA Championship will have as much impact on the final result as what the players can do on the so-called "Green Mile."

Where does Jon Rahm rank? Will Rory McIlroy, Scottie Scheffler or Bryson DeChambeau run away with the Wanamaker Trophy?

Players rave about it when they come every year, but for the course architecture heads and the peripheral golf community, the glass is very much half empty on this week’s PGA Championship venue. So why is the divide so stark?