Can LeBron & JJ get Luka to buy into conditioning?

We now know that the reason the Mavs traded Luka is because they gave up on him. They saw how he did not take conditioning and diet seriously. I don't blame Rob and Jeannie for taking the gamble as its totally worth it. But for this trade to work long term, Luka will have to step it up a bit. So do you think they can get him to buy in considering Kidd and the Mavs couldn't?