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The quarterback carousel is perhaps sputtering more than spinning. But with demand outpacing supply, plenty of seats remain — and plenty of seats could still open up.

Eventually, one of those seats in one of those cities will go to Robert Griffin III. For now, the primary candidates are the Broncos, 49ers, and Rams.

Many have linked Griffin to the Broncos, but there’s a significant caveat. Denver coach Gary Kubiak learned the business under Mike Shanahan. And Shanahan’s tenure in Washington ended amid plenty of ugliness, with Griffin at the center of it. Kubiak, who still consults with Shanahan, would surely talk to his former boss. Kubiak’s former boss possibly will give Kubiak an earful.

Then again, Kubiak is his own guy, and his team has a specific need at the most important position on the field. Factoring in the possibility that Griffin, who grew up a Broncos fan, has matured and changed, maybe it’s worth bringing him in for a meeting. A workout also would be wise, given that no one has seen much of Griffin in recent years.

The 49ers will have a clear need at the position if/when Colin Kaepernick is traded, and Griffin has long been linked to 49ers coach Chip Kelly.

The Rams are a more distant blip on the radar screen, but the Rams may have needs, too, especially if they’re not completely sold on Case Keenum.

At some point, someone will be giving Griffin a closer look, primarily because he plays a position that never has enough competent players.