Life without Luka + Potential Trades for Mavs; Lakers, LeBron, & the Finney Smith Trade

The Dallas Mavericks are negotiating life without Luka Doncic. Where do they stand, how will they manage, and are they still a top team in the West? Do they need to make a big trade? And the Lakers finally made a move. JJ Redick and the Los Angeles Lakers traded for D'Angelo Russell for Dorian Finney Smith. What does this mean for the Lakers and the Western Conference?