Think I mentioned this before, but when I was working with farmers on the latest and greatest things, the most enthusiastic innovators were hella interesting but were not actually that useful to promote change as they:
a) were so keen on change for changes sake they failed as much as they succeeded, and often their grand ideas were not that practical
b) just naturally seemed to
everyone else off
You wanted the people that were a step below in innovative zeal as they were less ideological and had better people skills