Here is another scenario: we get Howard but he will barely play while rehabbing his back. At the end of the season, he bolts out of Houston joining a team for less money, blinded by his agent's promises that a rich endorsement deal(s) will more than make up for his loss.
All good. It's just that a ton of people think its easy to go the okc route. Drafting an all star or someone as Amazing as durant can be missed, just ask Portland.
No one thinks it's easy. It's never easy to become better than the rest 29 teams in NBA. However, it might be easiER to become good by smart draft than by trying to pull something like what Miami did. You need to have City appeal and mega star appeal, which Houston has none.