Much like the Campeonato Brasileiro, groups from the decrease series, like B and C, can be promoted to the top division annually. In the case of Italy, just the prime three teams in Serie B are promoted to Serie A (in Brazil, promotion transpires for 4 teams in Serie B). https://finnhdvnf.losblogos.com/36587982/what-is-serie-a-can-be-fun-for-anyone