Just go BPA as long as it isn't a PG, at this point. Obviously everything can and will change, so we'll see, but it'll be fun to talk about for the next year. The countdown is on.
Personally, I think we need to land one more top 5 pick before we can start surrounding our core with role players. I don't think Irving/Waiters/TT/Zeller is a championship core at all. It is imperative that Grant does whatever he can- including bringing out the dreaded tank for one more season- to ensure we get a shot at another top prospect in 2013.
I would hope it would be a Center or a Small Forward, preferably a Center. Adding a star caliber center to this young core would be ideal, and make this a nice team on paper going forward. Zeller could back up whoever we get. But, it doesnt always work out that way, so a SF or even a PF would be welcome. Just go BPA unless BPA is a PG.