They need venture capitalists, managers, specialist lawyers and salesmen, who can understand what the geeks are up to and then manage, finance, protect and sell the result.

ECONOMIST: Technology industry

Others are well-paid managers or professionals who have specialist knowledge of an industry.

ECONOMIST: Business angels

To boost productivity, AutoTrader realigned specialist roles for some mature products and began to move administrative functions from the generalist account managers to the inside service team so they could generate leads across a broader portfolio.

FORBES: Don't Let Complexity Kill Your Sales Model