ATLANTA, July 7 : Belgium look to have found their best playing style at the World Cup after thrashing co-hosts the U.S. 4-1 on Monday, but the successful tinkering of coach Rudi Garcia has come at a cost to his top players.Belgium had been on the brink of elimination in the first knockout round against Senegal, coming back from two goals down with five minutes to play to advance to the round of 16, where Garcia made significant changes to the side.Kevin De Bruyne, Jeremy Doku and Romelu Lukaku were all benched, with De Bruyne, so long the talisman of the team, not even used in the clash in Seattle.Nicolas Raskin, Amadou Onana and Dodi Lukebakio replaced Hans Vanaken, De Bruyne, and Doku, with Charles De Ketelaere moving to a centre forward role that reaped immediate reward with two first-