Yeager,
In response to your question "How many scientists does it take to change a lightbulb?" I would submit the following reply:
They would probably never actually get around to screwing a new bulb in.
The group of scientists would first have to study the phenomenon of the light bulb, formuate a hypothesis of why or how it works, study similar phenomena in other environments, test their hypothesis on both a random and a control group, observe the results, draw conclusions from their results, publish a paper and then submit said paper to a peer review board, conduct a series of lectures in various countries to win support for their study and its conclusions, and finally, start a new study to determine what impact said lightbulb would have upon the environment.
Lastly, they would probably, ultimately conclude that the lightbulb was NOT a result of "intelligent design."
Regards, Shuckins