He's literally averaging almost the same ppg as smart, on a trash team. The rebounds are nice, but he's always been a gifted rebounder. If you look at randle's stats, you'll struggle finding any defensive impact whatsoever (ok, my mistake, you'll find negative defensive impact). If all he does is fill the box score offensively, and offers little more, I have a hard time choosing him over smart.
Also, literally last week (I think), wasn't this forum exploding with joy after Smart made that great save out of bounds to keep a possession alive at the end of the game (the opponent, I don't remember, unfortunately). Marcus, put simply, does things that don't appear on a box score, but makes winning plays. Does he have an attitude problem in games? Sure. But I'd rather have a competitive fiery guy than a defensive slacker and (based on reports from lakers fans) somewhat selfish teammates.