By Michael Shapiro The three-time NBA All-Star has picked up his play after the arrival of trade deadline additions Spencer Dinwiddie and Davis Bertans. View the original article to see embedded media. The Mavericks haven’t been afraid to gamble in the Luka Dončić era. Dallas’s phenom guard emerged as a force to be reckoned with across the league within his first few months in the Metroplex, accelerating the Mavericks’ rebuild in short order. Kristaps Porziņģis was acquired in a blockbuster trade just 49 games into Dončić’s career. Coach Rick Carlisle left the organization in June 2021 before …