The site navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.
This Wall Street Journal article provides a basic framework on how managers will need to manage a workplace consisting of both office days and home days - optimizing the type of work done in each setting.