Are these all recent changes, or have I been incredibly non-observant? What are those kids doing to the mentors over at homework help that Gokul has abdicated and Halls has moved to math? I see you've brought in the big guns, Tom and Integral! Mostly just curious to notice this quiet shuffling of mentors has happened without mention. Is this shift just to give folks a break from the highly demanding homework help forum by rotating in different mentors, or is it to align mentors better with their areas of expertise or interest?