Through it all, however, Mr. Anderson never switched agencies, as is the norm in the industry.

N. W. Ayer won the account, the biggest ever to switch agencies.

Mr. Whitesell is not the only top agent in recent weeks to switch agencies.

Clients will have less continuous service, too, they say, if they must switch agencies when they move.

The ad became a running joke among some members of the target audience and eventually Subaru switched agencies.

The administration agreed to begin by asking for volunteers to switch agencies.

The client has switched agencies as it switched its own location to the West Coast from Gotham.

The Smoots switched agencies and went through with a semi-open adoption, then returned to Tennessee.

"In a bad economy, clients are very often looking to switch agencies," he added, "and they're looking for someone who thinks a little out of the box."

Kraft also switched agencies for six other brands in the United States.