Re: Wicked Problems, you might like to know about this recent publication:

“Wicked Problems – Social Messes: Decision support Modelling with Morphological Analysis”. Springer, 2011.

You can see a description at:

http://www.springer.com/business+%26+management/technology+management/book/978-3-642-19652-2

Regards,

Tom Ritchey
SweMorph