Olympic hoops officiating

I got a chance to watch my first 2008 Olympic basketball games this weekend. I thought the officials really worked well together on both the Mens & Womens games.
Although the games were blowouts, they still worked as if both teams had a shot at it. The rotations were crisp, great position adjustments & the call selection was consistent. I know basketball is universal, but to see officials from different parts of the world to come together & be on the same page was great. Is that the norm for officials who don’t work together all that often?

I noticed that FIBA mechanics require the administering official to go opposite the table on FTs.
Why is that?
Who brings the subs, the C with their back to the table?
It looked as if they went opposite after reporting fouls as in NCAA-M. I never could figure out the coverage areas though. Does the L extend to the sideline or the 3pt line in the corner?