If BBD comes back, I'm thinking he'll be getting a lot more PT than The Landlord.
Still, I can't see him signing for a long-term deal unless it's getting close to $4M per. Makes more sense for him to come back for a year (ideally, he'd be able to negotiate a one-year deal for $2M - $3M instead of signing the qualifying offer) and take his chances twelve months hence.
There won't be a LOT of minutes for him, but they'll be enough to show other GMs what he can do (and maybe not so many as to really expose his weaknesses). Got to assume that KG will be capped at 30MPG, 'Sheed probably under that, and that KG will miss a few games here and there. There was room for both Powe and BBD to get a little PT even before KG was hurt, they'll be room for 'Sheed and BBD as well.