I do work within certain parts of the Alumni Association and was recently tasked with a job of finding two or three professors at Michigan who are both prolific lecturers and speak about things normal humans can understand and bring them out to suburban Detroit to lecture to alums. (i.e. I don't need someone who is super technical at something like engineering and can't speak to people who don't have significant background on the subject). I'd very much appreciate any commentary or suggestions from any of you that are currently undergrads or recently graduated.
A few caveats/don't bother recommending the following:
1) John Bacon - He's already been brought out this way to lecture by an alumni group so I can't use him.
2) Ralph Williams - Ditto.
3) Juan Cole - DItto again.