Quitting as a Business Strategy   Persistence doesn't always pay
off. It's a concept that upbeat small-business owners, who
regard quitting as failure, still haven't mastered, says author
and blogger Seth Godin. In his latest book, The Dip, he sets out
to get people thinking about the idea of quitting as a strategy.
At first read, the slim manual seems to run entirely against
logic. When asked how they got there, successful people always
talk about hard work and not giving up. Godin says that's
because they forget about all the things they had to forgo in
order to concentrate on being the best.  The book isn't a
guidebook to knowing when to surrender. Even Godin admits that
quitting is more of an art than a science, but he says most
people do it at exactly the wrong moment. "Most of the things
that people set out to do are easy when you start," he says
about pursuits from starting a business to learning tennis.
"Somewhere along the way you hit the dip, and that's the place
where most people quit."  That's al