The Knicks' unexpectedly dominant start to the season has stirred up a lot of "yeah, but." To wit: "Yeah, but the Heat weren't trying," "Yeah, but these teams are missing their best players," "Yeah, but they're just hitting a lot of threes," and after their most recent, sloppiest win over the Magic, "Yeah, but you can't get away with an off night like that against the Spurs."