> who we know will participate all year and not drop out.

Yes, that's a mandatory consideration. 

When will be the team pick up post where we get to know who are in which team?

Coinsreporter

There could be more if needed but I think 5-7 is a good amount so that we can make the same number of players on each team who we know will participate all year and not drop out. 

grayruby

Stacker_Sports

USA vs The World 2025 ideas

How many participants there? 
You said 5-7 is a fixed or can be more than that. 
I say it should be more or less but remain equal for both sides. 