I would say no for the following reasons:
Hayes is the only Rocket big who can hold down a low-post player. Neither Miller nor Thomas can,so that weakens the D just too much.
Deng doesn't create for others and is a SF. The Rockets are loaded at SF w/Battier,Ariza and Budinger.
Dengs' salary kills all the cap room the Rockets would have next yr. Since I don't think he's the missing piece to the Rockets that would kill the idea for me.
Tyrus is a PF and that's the one position the Rockets would still be stocked with-Scola,Andersen and Landry,all of whom can provide offense,plus Pops Mensa-Bonsu.
Now a Thomas for Landry,Dorsey deal I'd do in a second
