Then it's a Catch-22 as it took Oprah a few years to find her way and
turn her show into a juggernaut. And now there's a glut of talk shows
so soon after the networks canceled soap operas and they needed to
fill those hours.
A more likely explanation is that they paid out a lot of money to
Cooper and they can't recoup their investment. So unless there are
cheaper shows out there they will look for cheap and unknown talk show
hosts.