This is one of our favourites and really says it all:
" Never doubt that a small group of thoughtful, committed people can change the world; indeed it is the only thing that ever has.
Margaret Mead, Anthropologist: 1901 - 1978
As one of the leading thinkers on teams said:
"The merits of a team should never be assessed without considering its purpose."
Dr Meredith Belbin