Phil thinking about new coach?

Phil Mickelson was spotted working with swing coach Butch Harmon before the WGC Accenture Match Play Championship in Arizona. That wouldn't normally be cause for news, but Mickelson already has a swing coach in Rick Smith. The timing is interesting, considering Lefty went left again on the 18th hole at Riviera on Sunday. He had a one-hole lead with one hole to go, needing only a par to win the Nissan Open. He bogeyed the hole, then bogeyed the third playoff hole and lost to Charles Howell.