The Houston Rockets are widely expected to be one of the best teams in the NBA next season. According to NBA.com's power rankings, they're the third-best club in the league.
I just discussed ESPN's power rankings. They've got Houston second. A one spot drop isn't a significant departure. There's a clear consensus that the Rockets are one of the league's best teams:
But it's the team that NBA.com ranked ahead of them that's significant.
I've discussed Denver here as well. They're terrifying. If Houston didn't have the best offseason in the NBA, that's because the Nuggets did.