Oh well, our expectations are all low. In one of my MBA classes we did an experiment on synergy with four groups. In most of the groups, a strong leader forced his opinions on the group and they got scores at or below the best individual score in the group. Our group got a score that was 30% higher than the best individual score. That is what group think is suppose to be about, but it takes the right kind of people to do that, leaders who are willing to learn and not just to gain power.

REP: You entire experiment was not based on my principles. Your prime criteria to judge the intelligence was based on ability to achieve results based(forced or democratic)
In my theory the depth of discussion and focus determines the intelligence.
When you will calculate the intelligence of this group over a long period of time get a rising stock market like figure with rare big Quantum jumps. It would interesting to see if things can De-Evolve(in intelligence) permanently.Local variations take place everyday everywhere and prabably with everyone.