I'll just finish with this, you're coming down the stretch of a game and you need a stop or a bucket with Duncan on the floor.
Who would compliment Tim on the offensive-end better with the defense sagging when they needed someone to break down the defense, make a play, or shot off of a kickout? And who would would be more likely to come up with a turnover, make a steal or game-changing defensive play, and where would that play or opportunity most likely come about, position wise, with Duncan manning the 4?