Either Bron's injury was worse than reported OR he simply believes we're close enough to make a push when he returns.
And he's trying to show people that he wasn't stunting the growth of the young players. They have a perfect opportunity to show who they are and can be without LeBron.
Helps force the Lakers hand as far as trades also.
LeBron will come back when he's healthy and isn't a risk to re-injure himself because of the injury. LeBron is shooting for the MVP and the only way to get close on this squad is for people to see how important he is to this team. If he comes back and we win 20-25 games to finish the season, it's a wrap - LeBron = MVP.