I agree that bringing in something would be good, but I wish I could find Martin's dream scheme of the "original" tracker module. I think you would like its features, too.

It would be like a forum post that can be custom tagged per instance (like the custom rating system -- create tracking stages just as you create rating criteria) as a feature request, bug, etc.. Then as the bug is tested, resolved, etc. it is tagged and flagged as such. Each new post would be like adding a new discussion, so you have a familiar forum (with attachments) built into every tracker request (along with subscriptions, etc.).

But you would want to create a new view/sorting interface that would show all of the various stages of the tagging.

While this would fully integrate a tracker within Moodle, it would also provide flexibility for teachers to track anything. Instead of tracking bugs, they might track projects, they might track independent reading, to dos, etc.. It would be HIGHLY flexible. (It would even more flexible if these integrated with the calendar and if some of the tracker instances were private to the teacher/student).

I wish your excellent team might consider this one. While bringing in systems from the outside often work, they never feel "moodle-y" enough for my taste.

best,
Tom