With rising interest in viewership of esports, some companies sought to create leagues that followed the franchise approach used in North American professional sports, in which all teams, backed by a major financial sponsor to support the franchise, participate in a regular season of matches to vie for top standing as to participate in the post-season games. This approach is more attractive for larger investors, who would be more willing to back a team that remains playing in the esport's premiere league and not threatened to be relegated to a lower standing. Though the details vary from league to league, these leagues generally require all signed player to have a minimum salary with appropriate benefits, and may share in the team's winnings. While there is no team promotion or relegation, players can be signed onto contracts, traded among teams, or let go as free agents, and new players may be pulled from the esports' equivalent minor league.