"What's wrong with putting 1 and 2 together, given their background at Torrey Pines?"

Doug Ferguson fleshes out his exclusive on the unique pairings structure for this year's U.S. Open.
Mike Davis, the senior director of rules and competition for the USGA, said the top 12 players will be grouped together and spread over the four various time slots — starting on the first tee or 10th tee in the morning, and first tee or 10th tee in the afternoon.

The biggest stars usually are dispersed among the morning and afternoon times, largely at the behest of television. Davis said the USGA has been thinking about a major change over the past few months and decided to give it a try.

"Why not put them in the same wave?" Davis said in a telephone interview from San Diego. "The heck with what TV wants. Let's do what we want for the championship."
You can do these things when they are signed through 2014 or whatever it is.
The original thought was to keep Woods and Mickelson near the same time, but as Davis spoke to USGA executive director David Fay and other executives, they decided to go a step further.

"What's wrong with putting 1 and 2 together, given their background at Torrey Pines?" Davis said.

From there, they decided to involve the top 12. That means Ernie Els, Ogilvy and Justin Rose would be in the same group, while Steve Stricker, Jim Furyk and K.J. Choi would comprise another, and Vijay Singh, Sergio Garcia and Stewart Cink would be the other.

The U.S. Open traditionally groups the defending champion, the British Open champion and the U.S. Amateur champion. That would not be affected with Angel Cabrera at No. 22 in the ranking, Padraig Harrington at No. 14 and U.S. Amateur champion Colt Knost not in the field because he turned pro.

"If there was a right year to do it, this was it," Davis said, alluding to Woods' and Mickelson's history at Torrey Pines.