Since a lot of us consider ourselves to be shy or introverted, I thought this article from the New York Times might be interesting. It's an opinion piece that discusses how there are some situations where being the person sitting in the periphery might be helpful, and I think it can actually be applied to the changing world of publishing.
In a nutshell, the people who are always aggressive and throw themselves into new things also risk being the first victims of these new things. The people sitting on the sidelines have the chance to watch those first brave people experiment. On the other hand, there are situations where adapting quickly could also be helpful.
Here are some quotes from the article:
"[I]t's also possible the young woman is 'just shy,' or introverted -- traits our society disfavors. One way we manifest this bias is by encouraging perfectly healthy shy people to see themselves as ill."
"Shyness and introversion are not the same thing. Shy people fear negative judgment; introverts simple prefer quiet, minimally stimulating environments."
"[B]usiness self-help guides often suggest that introverted leaders practice their communication skills and smile more. But...it may be extrovert leaders who need to change, to listen more and say less."
"But had the sitters taken Zoloft and become more like bold rovers, the entire family of pumpkinseed sunfish would have been wiped out."
"If we continue to confuse shyness with sickness, we may find ourselves in a world of all rovers and no sitters, of all yang and no yin."