Melo has always been about Melo. Always.
Talented as they come putting the ball in the basket, but he's not a team player.
Always makes his future decisions solely on where he can get paid the most. And no harm in that, being successful at getting paid is it's own merit, but he's not concerned as much with team success as he is with "Melo" success.
He said the same thing last season when he joined OKC, of course he'd say the same this season.
At least the likes of Kobe, players that could never accept not being good enough to start, you knew he gave his absolute all on the court and even more off the court preparing his mind and body for the game. Melo's just mellow about that sort of committment.
Dumb move by Houston, in my opinion. At this stage of their careers, best to stay away from the likes of Melo and Wade. They're living off their reputation at this stage of their careers, yet too stubborn/proud to accept a new role that would benefit their team.