not sure what to make of this. on the one hand, i do think its more a mental issue than anything else (minus KG, though he's generally been getting better physically - pierce should also be fine by playoff time), and maybe they realize they can't put in the mental effort all game long, or else they'll be spent by the playoffs. there is something to that, actually, and in that case, the fact that they can get big leads on good teams suggests that, if it was the postseason, they'd keep the leads. BUT, yeah, i don't know if teams can just flip a switch. shaq's lakers did that once or twice, but it's not a given.