Even though he's 37 years old, Andre Miller can still ball. There's no question about that. Whether or not he should continue to do so in Denver is up for debate.
After signing Nate Robinson this summer, the Nuggets now have two undersized, but extremely explosive point guards in their 20s.
Robinson, Miller and Ty Lawson make up quite a logjam at the position, and none of them is suited to play shooting guard (though Denver often deployed lineups that featured both Lawson and Miller last season).
Defensively, all three are too small to check opposing wings. And with a career three-point percentage of 21, Miller is a terrible outside shooter to boot.
It's going to be difficult to get all three of those players significant minutes, and Denver may still need a replacement for Andre Iguodala at shooting guard. They picked up a great shooter in Randy Foye, but he doesn't come anywhere near Iguodala as a defender.
Considering those things, it follows that the Nuggets could move their veteran playmaker in exchange for a defensive specialist on the wing.
Swapping Miller for OKC's Thabo Sefolosha could benefit both teams.
The Thunder likely wouldn't be interested unless Reggie Jackson, Jeremy Lamb and Perry Jones take some steps forward this year. But if that happened, and Denver's three point guards struggle to jell, both teams could be looking at shaking things up around the trade deadline.
Another option could be a straight-up swap between Denver and Utah—Miller for Brandon Rush.
The Jazz would get a great mentor for rookie Trey Burke and the Nuggets would get a 3-and-D wing to replace some of what Iguodala did defensively.
I explored this option in further detail here.
As I said before, there's no doubt that Miller can still contribute at the NBA level, but those contributions may be in higher demand outside of Denver.
All stats courtesy of Basketball-Reference unless otherwise noted.