I like Danny Green's defense even though he's a very limited player in so many other aspects.
He may have questionable work ethic, but clearly better work ethic than LaMarcus. The problem is that these two players are the next oldest players in the team and you have to expect that they show some level of leadership. Green is 30 and Aldridge is 31.
Everyone else is younger, Mills is 28, Simmons 27, Leonard 25 and gets younger with Bertans, Murray, Forbes and now White.
The old guys with work ethic, like Manu and Parker are likely not going to be playing.
Gasol is a slacker and isn't working harder at his age.
So really, Spurs have a big problem with Green and Aldridge being slackers.