Two things seem to be emerging:
1. Bender stock is falling, at least for now.
2. 3 pick is an over-pay for Okafor, and Philly will have to add juice to make trade work.
3. Philly is not in the driver's seat on the Noel/Okafor front.
It's not about the value. We all agree that the #3 for Okafor would be a pretty fair trade. It's that Philly (because of Hinkie) are in this pinch with 4 high-draft pick PF/Cs on the roster and the #1 pick in a draft where the top-2 talents are basically PFs.
When the other team has to trade...you are in power.
This is actually incorrect. What matters not is how many PF/C types Philly has and thus needs to trade, what matters is how many teams want young PF/C's, and how many are available.
If, for example, 10 teams want such a player, and there are only 5 surplus PF/C on the trade market or in free agency, then Philly is in the drivers seat, because they control the market, and demand is greater than supply. If, on the other hand, there are 10 such surplus PF/C available, and only 5 teams looking for them, then Philly will be in trouble.
(I'm using the term "surplus", because while Philly might trade any of their 5 such players, they'd only trade 3 at the very most. So while 5 could be on the market, only 3, or maybe just 1 or 2, would be moved. Again, this is a hypothetical, but I'm just trying to explain market power.)