Good description from ozomatli...
Also, juice's tournaments are typically first-come, first-serve on the team choices. Some people will grab 3, 4, 5 teams. There is an advantage to jumping in on thejuice's tournament early to grab the best perceived choices.
In my tournament, everybody is on equal footing. In fact, some themes will see more than one person select the same team or combination of teams (depending on the theme). But they will often have significantly varying results depending on a myriad of factors, including managerial settings.
Here is a thread from last year's round 1, where the theme required you to draft your players using just two franchises. The Indians/Giants combination was selected 12 times. Page 2 shows how much those 12 teams varied in winning%.
https://www.whatifsports.com/forums/Posts.aspx?topicID=487450&TopicsTimeframe=0&page=1&TopicsPage=0