In a role filled with hopes and dreams, Will Ferrell will be at five different Spring Training ballparks in Arizona on Thursday as production begins on a new HBO special from "Funny Or Die," in partnership with Major League Baseball. Dedicating the special to the fight against cancer, Ferrell is also honoring the historic feat of Bert Campaneris five decades ago by playing every position on the field, and maybe some off the field, for 10 different teams on the same day.