He also had to persuade clients to use Diligence, which initially operated from a serviced office just off Harley Street in London.

According to a labor lawyer who has had experience negotiating with Levine, he is particularly skilled at persuading recalcitrant clients of what he thinks is right.

It means "cross-selling," or persuading clients to use other services a firm offers, just as McDonald's persuades Big-Mac-and-fries eaters to buy apple pie.

In the early 1940s, Bower placed more emphasis on persuading clients to accept and act on its recommendations.

It is also a way for the health plans to persuade clients that their opinions are valued, in the hope of keeping them as customers.

He tries to persuade new clients to carry a notebook and record every cash expenditure.

A badge and an air of authority usually persuaded delinquent clients to accept invitations to visit Accounts Receivable.

In a few cases, he persuaded young clients to refuse to sign with the team that drafted them and to hold out for more money.

In particular, it became agency policy to persuade clients (particularly new clients) that full-scale research into their markets would result in more effective advertising.

"I spent a couple of pretty miserable years trying to persuade clients of the importance of physical experience in design," he recalls.