Make the default templates more comprehensive
Word is missing items for many of the configuration options ( reading pane view etc) because they are written on application close rather than when they are configured so were missed out.
Outlook quick address toolbar doesn't work in a new mail (creates a similar file to the main quick addres bar)
MRU doesn't roam in any office app.
This is compounded by the fact that switching from default templates to custom templates is destructive ( documented as local tempaltes deleted) and a little flakey using group policy :)