IN PROFESSIONAL sports, one plus one sometimes equals zero. If you say you have two or more aces on your pitching staff, it can mean you don't have one. If you have two point guards, well, that's not very promising either. Almost weekly, Cleveland Browns coach Hue Jackson chooses between two starting quarterbacks, mostly because he doesn't know yet if he even has one.
Every now and then an NBA team lucks into a Tim Duncan/David Robinson situation, or a Ralph Sampson/Hakeem Olajuwon deal, but those comets come every couple of decades or so, and they are often preceded and followed by lots of lean years.