Southwest has a greater number of unionized employees than any other airline, yet it also has better employee relations than any other airline. Why isn't that a contradiction? It turns out that unions love Southwest because, unlike other airlines, it has never had a layoff. Southwest didn't expand as much as traditional airlines did during good times, which means that it doesn't need to cut back quite so much during bad times. This policy is designed to maintain good employee relationships, and it is these good relationships that allow Southwest to include the team-late provision in employment contracts, as well as put the phrase "and everything else" into all of Southwest's job descriptions. Whatever needs doing, you simply do it, without having to locate, for instance, a qualified master electrician to screw in a light bulb. And this chain of interlocking trade-offs — expansion limits to preserve job stability in return for flexibility in job descriptions — all leads directly to faster turnaround, the key to Southwest's success.