It fits, it's a departure from
'Giving Them What They Want', which set up the idea of Lawrence being a suave kind of guy, reading the people to find his target.
This new one,
'The Only Game In Town' sets it up more as Lawrence gets all the dough, because there's no competition in Beaumont sur Mer for his position as the swindler. It's pretty good, but it certainly surprised me when it started. You don't really get introduced to his self-possessed character as much. They do keep the little dialogue bit with him at the craps table, getting Andre to sell off his diamond ring in front of Muriel.
The melody is a departure too. There's no hint of it elsewhere in any of the music throughout the rest of the show.
"Umm...A1 is a steak sauce."