He didn't log those 21 extra minutes over Sexton and Keyonte in the 4th alone. Closing lineup is one thing and there I would play Clarkson if no one else is clearly hot (while he is cold), but this game never should have been close. Clarksons play and the refs giving Magic 36 FT on touch fouls in a rather clean game were the two main reasons why we didn't run away earlier.
Why would you play any guard 37 minutes on a B2B, let alone someone who is struggling all game, unless he actually is a star or superstar level guy?