Liz Gannes interviews Duncan Watts about a number of topics included in his new book "Everything is Obvious".
I found his perspective on the challenges, reality and research focused on "Influencers" very interesting (about 3:17).
He suggests it is very difficult to identify the very few people that have strong influence in the network... and the results are often disappointing.
Instead, Watts sees research on influence moving toward finding the very many people that have "some" level of influence in the network.
It would seem that Watts sees more value in finding the "average many" influencers instead of the "vital few".