Bowen plays Dirk for the first three quarters. Duncan plays him in the fourth.
Spurs would prioritize keeping players out of the lane. If that means conceding more perimeter shots, so be it.
All this would be contingent upon competent play from Rasho. If the Spurs have to play small ball because their bigs suck too bad to get on the court, then they have no business beating Dallas anyway. If they did, they'd have to pray the Clippers didn't advance. And if somehow the Spurs got to the Finals, the Pistons would win in four routs.