I was trying to think of how the resources would work. I can't think of a game in which I have had every single strategic resource; usually, I have had to trade for it, or take it by force. When, as a human playing humans, would I trade a resource? I would only do so if I could be sure that the recipient wasn't a threat to me. Conditions to fulfill this might be, war with another party (a war which I hoped to equalize or tilt), or very weak strength. I also might trade a resource, or share it, if I were next to someone else. Think about this. If you are next to player A, and there is a resource you are fighting over, and player B is somewhere else and has ready access to this resource, does it make any sense at all to fight with A? No, rational people would more likely share the resource (exchange it every so often), because fighting eachother for it would weaken them both, almost ensuring that B would be able to beat the winner.
What do you thinK?