It is quite clear that Bosh is not coming to Houston

-Bosh's top five list did not include Houston when presented to Toronto's front office.
-National media never talks about Houston as the one of the likely destinations
-Bosh said that his he waiting for Lebron to make a decision. (This is the clearest indication that he wants to follow Lebron.
-And today , Lebron's and Bosh's dungeon Master (William Wesley) is saying that both are joining the Bulls.

So since Bosh is pretty much out of the picture , I don't think Houston will go after any other big names remaining . Brad Miller or some other backup Center will be signed as a backup center and that will conclude Houston's free agent signing .

So once again, Al Jefferson come back as someone Houston should/should not trade for .

Few months back CLUTCH using his foresight wrote a great article on Al Jefferson's possibility of joining the Rockets