TannerLynd:I'm surprized we don't have the ability to fetch a different ball from our bag, anytime we're inside a game.
IBTD: There's only one type of balls in your bag (which is locked close), and all the others
in your inventory are inaccessible. Think of them being in your garage.
It belongs to an old characteristic of the game: "Thou Shalt Not Make A Choice" during game play.