Summary: In part 1 of 2, Giants longtime P.A. announcer Renel Brooks-Moon chats with John Shea about calling games in an empty ballpark and a transformative year in baseball -- and American -- diversity. | Giants Splash Newsletter: sfchronicle.com/giantsnewsletter | Unlimited Chronicle access: sfchronicle.com/pod Learn more about your ad choices. Visit megaphone.fm/adchoices
