Episode 39 of "Las Vegas"
s02e16 Can You See What I See?

When the hotel enters one of its slowest weeks of the year, Ed decides to stir things up a bit by switching everyone's job positions around so they can walk in one another's shoes. Delinda takes over for Ed and finds herself bored stiff after having to attend a city hall meeting while Sam and Mary take over surveillance. Meanwhile, Danny is in charge of the casino floor and runs into an old high school buddy who's having extremely unusual and suspicious luck winning millions of dollars. Elsewhere, Mike is put to the task of clearing a traffic ticket that Ed claims is wrong - despite the fact that there are photos to prove his guilt.