As their 15-point lead unraveled against the LeBron James-less Lakers, the Mavericks looked to stabilize themselves with two reliable 2018-19 season intangibles Monday night.Luka Doncic and American Airlines Center.When Dallas' poor ball movement and turnover barrage continued, and its lead evaporated into a double-digit deficit, Doncic tried to rally the Mavericks, but the damage was unfixable.The Lakers' 107-97 victory dropped the Mavericks' home record to 15-4.