I'm curious to hear what other's have to say about such a ticket. Clark/Dean or Dean/Clark would be great, but the probability of that is pretty low after Clark strategically burned the VP bridge on Russert.
In re: to Richardson..
Richardson has some domestic experience as a governor and Energy Secretary. Hopefully, they could make alternative energy an issue in the election. Also, Richardson makes the foreign policy side of the ticket even stronger, as he was a UN Ambassador.
Also, it would be great for the country as we'd have our first Hispanic VP. And Richardson could help draw votes from the potential swing states of New Mexico, Arizona, Nevada, Colorado and Florida. All strong El Norte areas.
For more info on El Norte
http://www.massinc.org/commonwealth/new_map_exclusive/ten_regions_index.html