Where does signing Brand and trading away Carney rank us among the Eastern Conference teams if we do nothing else of note? We're still behind the Celtics and Pistons for sure. But I don't think there's any other teams you could put firmly ahead of the Sixers.
It is impossible to know how much better the Sixers will be because even with Brand or Smith coming in a very large part of the Sixers improvement this year should come from the maturation of the young guys like Thad, Williams and Jason Smith, plus what we might get from Speights. They are very talented players, but will Thad have a break-out year this season or next? Who knows? I am sure it will happen, but when and to what extent is unclear. Those things are hard to know any time before training camp at the earliest. Even without Brand or Josh Smith the team should be better, adding in the FA as an x-factor makes it even tougher to gauge.
Also, the Pistons and Celtics are dependent on older players, hence increasing the risk of injury related performance drops. The Raps and Wiz are counting on a known injury risks in O'Neal and Arenas to make their teams better. The Cavs will be making some big trade at the deadline with all of those expiring contracts, you can almost guarantee it. The EC should be pretty interesting this year.