I actually think him losing a step could help his game. To me, his biggest weakness is he tries to do too much and only has one gear which is 100%. Losing a step could help him find different gears.
Don't get me wrong, it could be a bad deal. I'm just not naive enough to say that it's a done deal. The Rockets looked like they sucked last year and then figured it out and became one of the best teams in the NBA. They did this while Chris Paul was being a bad teammate.
I think Dan Anthony's system is built for a guy like Westbrook. I think Harden and Westbrook can lighten each other's load (lol) and could glue. I think they both have more than a few years of all star level game left in them. I think they could make noise in the league.
The Rockets have had us by our balls the last few years and now have Westbrook and people are acting like they just got 31 year old Antoine Employee #8 Walker. I can hope, but I just don't think it will be that big of a disaster. I hope I'm wrong.