Looking at the Rockets, their main weakness is rebounding. They're probably going to start Harden, Westbrook and Gordon together. If they want to bring Gordon off the bench, they'll likely start Daniel House or Gerald Green. Their main PF is PJ Tucker, who is 6'6" and now 34 years old. They're a small team 1-4, and this is what did them in during the playoffs last year when guys like Kevon Looney and Andre Iguodala ate them up on the offensive glass. Capella is a fine rebounder. Their backup 5s are now Nene and Tyson Chandler, both 37 years old, who are likely limited in terms of the minutes they'll play. They're going to give up points in the paint and offensive rebounds, unless their young guy Isaiah Hartenstein makes huge strides.
I think this takes them out of the top tier in the west.