If every team has the same age, maybe it can work. I don't like a team with 20 years, other with 30 and the others with 14... We know this is a big difference between teams.
Travel around US is fine, but with some legs out US would be great too.
They can go to South America, Japan, Australia, some Europe countries like Portugal, Spain, London..., and Canada.
I think a Family Edition every 10 International Seasons can work! xD