This could mean more minutes for Bone and less for Mcrae. or it could mean nothing. Napier is replacing Isiah Thomas on the Wizards of it could end up meaning more minutes for bone if Shabazz struggles early. the bucks have a lot of injuries at the wing so McRae will probably eat up those minutes and if he plays well maybe he keeps some of them even when the guys he's covering for return healthy.
Then again it could end up the exact opposite. Maybe the Wizards traded for Napier because they didn't think Bone was ready. I'm sticking with the first scenario