Tenn... You might want to do some research into how NBA salaries and the salary cap works.
None of those teams have more money than us. We could have traded for Shaq/Vince if we wanted to. Neither of those guys fit into the Celtics plans.
Those guys weren't "signed', they were traded for. Cavs and Magic had contracts that they sent out that "matched".
In the case of Shaq, it was Sasha/Wallace for Shaq... basically expiring contracts for expiring contracts. We would have needed to send out close to 20 mil to trade for Shaq and that would have probably taken Ray Allen. Even if we DID have 20 mil in expiring, I'm not so sure we'd have much of a use for Shaq at this point.
In the case of Vince it made perfect sense, because the Nets are trying to position themselves in the "Summer of 2010". Orlando sent them expiring contracts and took on Vince Carter's 15 mil a year. It doesn't make a heck of a lot of sense for Boston to be paying Vince $15 mil a year to play off the bench, does it? Kinda a waste of money (and doubtful vince would take that role) when his position is filled in our starting lineup already. Also, I dont' think we could muster up the expiring deals to bring in Vince anyways. Salaries have to match. I think if we combine the expiring contracts of Eddie House, Scal, Tony Allen, Pruitt, Giddens and Walker we could take back a guy making 10 mil or so. Again, not sure who out there is making 10 mil that makes logical sense for our team.
As for the other guys... we all have the same MLE (like 6 mil a year) to offer free agents. Our target is Rasheed. The media can talk about how other teams are going after Odom or Artest or something... and I'm sure Boston has just as much a chance at landing Odom/Artest for the MLE as those other teams do. The only difference is that some of those teams (like the Cavs) could offer an Odom/Artest a starting role... whereas Boston can only offer a bench role. Which is why the target is Rasheed (who presumably would be ok with coming off the bench).
Our team isn't cheap or lazy... it's just a matter of finding the right fit.
In other words... if a team like the Clippers decide they want to give away a guy like Chris Kaman (making 11 mil), there is really nothing stopping us from giving them the expiring contracts of Eddie House, Tony Allen, Scal, Giddens, Walker and Pruitt for Kaman. And if Sheed (or Odom or Artest) wants to come to boston for the MLE ... there is nothing stopping us from signing them.