I have been busy customising a HTML Master page. Initially, I set up (managed meta) global navigation with the appropriate snippet and showed how users can navigate to business and team pages. After a demo the consensus was to lose the global navigation but set up a custom branded menu (navigation) that points to selected pages or sites.
Thinking about it, I guess I could repurpose the above navigation, global Nav menu snippet and set up metadata navigation so my menu widget points to a set of terms News, People, Events? I guess I just need to style this to comply with the agreed look and feel. I am also investigation the custom menu Which is part of the Office App Model v2 samples. Hopefully this clarifies my earlier post - I welcome any comments.