First SSGN Deployed Crew Swap

This report from Guam discusses the first overseas crew swap since her conversion for USS Ohio (SSGN 726). I've never done a crew swap, so some of what the article said surprised me:

GUAM was the site for the first crew swap between the USS Ohio's "gold crew" and the "blue crew" with each crew consisting of 165 sailors.
The "blue crew" recently arrived on Guam for a regularly scheduled port visit.
The USS Ohio is scheduled to have three crew swaps and then return to Bangor, Wash., Ohio's homeport...
...The gold crew was scheduled to relieve the blue crew. After the swap, though, the blue crew will stay for roughly three weeks and repair the submarine before they can fly home.
It's the last sentence that got me scratching my head. I would have figured the crew swap would be at the end of the maintenance period, and the oncoming crew would stand proficiency watches under the crew that had the boat prior to taking over officially. If that the way SSBN crew swaps are done, with the Trident Refit Facility or IMF available to do the toughest maintenance? Were overseas boomer crew swaps done differently? Or did the reporter just not understand what he was being told?

I'd be interested in hearing from those of you experienced in such things if the off-going crew really does turn over the boat right away, but then have to stay around for three weeks of not-very-fun maintenance help.

Update 0521 23 Jan 2008: Looks like the Blue Crew only hung around for 12 days after they pulled into Guam, and 4 days after the Gold Crew took over.