Question about committer versus coordinator

[Chris Leonard <cjlhomeaddress gmail com>]

So what happens when a team has a coordinator, but not a committer (like Khmer)?

The Coordinator has marked a number of PO files for commit in vertimus,

http://l10n.gnome.org/languages/km/all/ui/

If a team does not have a committer, will someone else commit those on
the Coordinator's request or does each team require a committer?

Thanks for helping me learn more about how things work in the vertimus workfow.

cjl