I would prefer Pat and Mook. Given that Pat can regain his explosiveness and that Mook can consistently play at the high level he has shown in flashes.
I think you wait and accumulate a couple draft picks at this point. Harden was a major victory and a best case scenario. Someone will want to come play here soon. I think one of the big guys could force a trade next season at the deadline and we could for that person. Carmelo+Harden being my wishful thinking.
If T Jones and D-Mo (especially if Royce White) where playing, point guard position would be the weakest. I don't think Morey is as worried as many fans are about the PF position. If Jones had a good practice with the team he may get some time seeing how Patterson may be out of favor with McHale. With all the rotation at the point guard position it seems that is the position the Rockets are worried about the most.