By Tony Jimenez CHASKA, Minnesota (Reuters) - The U.S. have employed a Task Force and revamped their points system to try to end Europe's Ryder Cup dominance but one thing they cannot create is a team spirit that comes naturally, said Rory McIlroy. Fed up with losing for the third successive edition in Scotland in 2014, the Americans set up the 11-man Task Force to identify how they could compete better. "I think there comes a point where you maybe try a little too hard," European talisman McIlroy told a news conference at Hazeltine National on Tuesday. More...