Hi,
Probably thats because you are in level one, so, there are bot teams created to complete the leagues. These clubs are owned by new managers that start the game during the season 1. Every season have 28 days so if you start the game the day 20 or 25 for example, can be posible that you start in a new league, with 13 bots, and of course, been the last week of the season, you have less control, but season 2 is different.