It is the incentives that create some difference. The Spotrac numbers include what has been deemed as Likely Incentives but excludes Unlikely ones (not sure how this determination is made but I think it is something official and would be important for teams that are hard capped). Right now, our projected cap per Spotrac includes the following incentives (deemed Likely):
Brown:
$482,143 (65 games played)
$1,446,428 (All-Star)
(Brown also has a $964,286 unlikely incentive listed by Spotrac, MVP, DPOY, All NBA, I believe but the details of this are not clear).
Smart:
$500,000 (Body Fat Percentages)
With the likely incentives included, I have us at $143,214,558 or $6,614,558 over the tax threshold. I don't think it is worth dumping Parker now so that we can have a little bit easier time getting under the tax later. If he shows up healthy, in shape, ready to play, he will be useful and he should make the team. He will be well worth the contract. If not healthy, in shape, or otherwise just not ready, he should be cut but for those reasons.
Dunn and Edwards are the most expendable. Dunn is likely more useful than Edwards but also costs almost 3X as much. Dunn is probably shipped out at some point (if they decide to get under the tax) but that may be hard before the start of the season so Edwards likely is the one to be cut which would be too bad.