In terms preferred by economists, a situation defined by a principal-agent problem (such as you hiring a doctor or car mechanic who gets to both define your problem and figure out what to charge you for fixing it) was replaced by a much simpler employment relationship: would-be hustlers found themselves being turned into professional, generalistmanagers.
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.