By Chris Herring The rejuvenated point guard has given Luka Dončić and the Mavs a major boost—and a real shot at making noise in the playoffs. View the original article to see embedded media. The first couple of months of the season weren’t all that inspiring for the Mavericks. Dallas, which kept its roster largely the same as last season, came into the new year with a sub-.500 mark at 17–18. At that point in the campaign, the Mavs ranked just 17th in offensive efficiency—a wildly disappointing metric given that the club broke an NBA record for the most efficient offense ever in 2020. Some of …