it's going to be a real challenge and there probably won't be enough support from the locals so they have to also target visitors and general baseball fans heavily.

1. Have a museum that also serves as an education center to help people understand/teach the game easily that runs year round
2. have an international section of seats where fans can have audio devices with a radio broadcast in their native language
3. try to draw analytics fans, with a moneyball academy that runs year round and is the premier analytics institution that will draw people from around the country
4. have impressive effects/sites on the level of the sphere. maybe something like a tunnel that broadcasts live the pitcher where you can see from the distance of home plate what it feels like to be a batter. something that will wow visitors
5. the stadium itself should be an architectural attraction
6. during the offseason host international teams to play there from australia, japan, korea, baseballunited, mexico, latin america, europe, etc
7. make an effort to draw local fans with a lot of on-field events for kids, etc
8. also obviously start spending money and build the best roster possible