workflow

Does anyone have any recommendations on content access/permissions implementation they can share?

I'm a (relatively new) Drupal developer at private university that's nearing the end of an almost-two-year transition from Coldfusion to Drupal 7. We have around 800 faculty/staff and almost 200 of them need (or want) access to edit specific pages or sections on the website.

I'm a strong believer in using wiki technology to improve student writing (it's in fact what brought me to Drupal !). I'm working on improving a collaborative writing feature. It currently uses basically Open Atrium's notebook feature (revisions and inline diff) with the ckeditor wysiywg and puts comments on a separate page with talk module. I'm looking for some ideas / help.

One addition I'd like to add is