The Miami Heat's Big Three were everywhere during Saturday's first half. And then, in the third quarter, they were gone. So what stood as a 19-point lead early in the third quarter instead turned into a fourth-quarter deficit and a full night's work in a 114-107 victory over the Cleveland Cavaliers at AmericanAirlines Arena. "The energy, the purpose of what we were doing just waned a little bit," coach Erik Spoelstra said. And then returned when needed most. "What was most important at the time, was making sure we got back on track," said center Chris Bosh, with this the second time this season Bosh, LeBron James and Dwyane Wade each scored at least 20 points. At halftime, it couldn't have looked any more Big Three-rific, Wade with 20 points, Bosh with 18, James with 15 on 6-of-6 perfection from the field. The third quarter? Not so much: Wade scoreless, Bosh with two points, James with three. "You do have to credit the Cavs with staying with it," Spoelstra said. By the start of the fourth quarter, the Cavaliers were within 84-80. A 3-pointer by backup Cavaliers guard Matthew Dellavedova tied it with 8:40 to play, a basket by reserve guard Jarrett Jack then putting Cleveland up 93-91, as the Cavaliers made their move with a three-guard lineup. What looked so promising at the start of this five-game homestand suddenly turned into something else, the second-quarter ejection of coach Mike Brown fueling the Cavaliers, a third-quarter technical foul for Bosh contributing to a sense of Heat desperation.