Stuart Rothenburg is not a Democratic strategist, nor does he have any affiliation with the Democrats. He's one of the most honest forecasters out there, and in the past two election seasons he's been out front in spring saying "sorry Democrats, the wave you're hyping isn't happening this year."
You're right...I got him mixed up with someone else with a vaguely similar name, Stan Greenberg...I was thinking of a passage in Bill Sammon's book on 9/11 where he describes a Democratic strategy meeting on 9/11/2001 with James Carville and Greenberg, and couldn't find my copy of the book to make sure I had the name right.
The problem is, Rothenberg seriously embarrassed himself looking like a Democrat shill with that list. His failure to include more than "1" Democrat top 10 vulnerable House members (when I could name 3 just off the top of my head, Bean, Barrow & Marshall of GA - the latter of which I regard as even MORE vulnerable than Bean) was either sloppy at best, or indicates the man has jumped the shark to the Democrat camp.