At BlogMaverick, Mark Cuban describes how NBC is pursuing luck.
NBC is pursuing luck (rating uplift in prime time for lower costs of production) by sacking Conan and moving Leno to prime time . The change is a hedged risk with limited downside. If it does not work then NBC can send Leno back to the late spot and pursue normal business models of piloting, and producing regular prime time shows.
You can pursue luck all day every day if your downside is limited.