Gyms

[Symphony]

For this to even have a proper chance of working, we'd need to use a simulator. This isn't really a problem, but this forum's userbase isn't near enough to make all gym leaders you intend + having enough people to challenge them.
And then, again, there's the difficulty matter. People that are used to competitive playing would have to 'lower their standards' in order to stand as a viable/defeatable leader by the 'common' player.
It isn't a bad idea, but it won't work here.