I gotta give BBD his just dues and say while he might have a shot that is uglier and less reliable than Rondo's and Tony's and seems to have inherited Antoine's ability to not get a layup over the edge of the rim, he plays good defense.
Doc stresses that he wants his second team to think defense first and second and scoring third. Baby and Pruitt seem to be the only guys coming off the bench who get that. Eddie's, Powe's and Tony's rotations before he went down have been awful. They've been late by more than a step or two on way too many occasions. The second unit has looked a lot like the 2006-07 defense that the C's put on the floor.
Baby has been the first guy off the bench for that one and only reason. He gets it defensively, his defensive footwork is excellent and his man up defense is good. If the other guys on the bench got this, BBD would probably be the third, fourth, or fifth guy off the bench like he should be.