"Greenkeepers have played a starring role in home-team preparation since at least the 1980s when the Ryder Cup became more competitive after decades of U.S. dominance."

Mark Peters files an excellent WSJ look at the various course setup tactics, fetishes and other neurotic acts of Ryder Cups past, whether they really matter and how Medinah super Curtis Tyrrell will be doing his part for Team USA.

On a recent afternoon, Mr. Tyrrell, the director of golf-course operations, was zipping around Medinah in a cart overseeing last-minute preparations as corporate tents and concessions rose around the course. Even as players and fans start to see some of the gamesmanship Mr. Love has planned, other plans remain private.

"Some of it is real obvious, with the mowing heights in the rough," Mr. Tyrrell said. "But there are a lot of things that are meant for the team only."

There is also an audio segment featuring Peters talking to Tyrrell.