How value networks can articulate with the present economy - an example in food preparation and distribution

Yesterday I had a conversation with my friend Paul about the advantages of open value networks (OVN) over classical structures, including co-ops.

picture comes from this website

Context

Paul is involved in #occupy Montreal and they are now organizing a center for preparation and distribution of vegan food in Montreal. They also want it to be very local. This operation would require gathering products from different local farmers, cooking/preparing, packaging and distributing raw or prepared food. 

Question

Should they create a co-op or an OVN? 

My answer 

They can have a co-op embedded within a value network.