I think part of the decision is based, not only on all the things already discussed, but on how different CD II and Stewie are, as players. If you're talking two guards, or two forwards, perhaps Geno does defer to the decorated veteran. But they play very different positions, and have pretty different skills, and the combinations produced on the floor are quite different. It really is an "apples and oranges" comparison, not "Macintosh v. Red Delicious". Stewie (aka El Condor Passer) can't be replaced well by anybody else. We're filthy deep (bad mojo! bad mojo!) at guard, and 3-point shooters, so Caroline's position brings more flexibility. I expect, hope, and believe that she'll handle it with remarkable grace - and contribute mightily when she is on the floor.