I think if Asik is a target, it would be with the TPE, or perhaps Humphries, and involving a third team to send Houston some players.
One interesting idea could be Thaddeus Young. I am not sure how sold on Young Philly is longterm, and maybe they would like to weaken their team even further for this year and open up even more cap space for next year.
Something like Humphries and Brooks (that is a great tanking duo) to Philly, Young to Houston, and Asik to Boston might make sense. Maybe Houston would want Kwame as well for depth.
I think Young could be the type of player that Morey would covet, and Dwight would love to play with. He basically would play the Rashard Lewis role as a shooting PF, who won't clog the paint for Dwight, but will also really run the floor in the up tempo system they run in Houston.
Philly gets a couple guys who will really help fill out the roster as they tank (and Brooks can even make some fans happy), but will come off the books next summer. Philly has a chance to both be terrible this year, but reload really fast next summer with a ton of cap space, and a very deep free agent market to compliment all of the talented young guys.