The tank was three weeks ago. The tank’s off now. “It was never on,” DeMar DeRozan growled after the Raptors dismantled the Knicks in the late going on Friday night. We’re so far past a tank that Raptors coach Dwane Casey has stopped pretending to humour questions that may include the word. When one New York writer tried gently edging in that direction, the elaborately courteous Casey ran him over. “I’m not even going to talk about tanking,” Casey said, with such unusual curtness it sent heads snapping back. “I’m not even going to answer that question. The goal is to win, period.” (Because he is who he is, Casey softened almost immediately: “No disrespect. That was a great question” — though both the question and offending word had not actually been said aloud.)