Off Season for Baseball Isn't What It Used to Be
LEAD: IN the old days, Casey Stengel used to drive a taxicab in Kansas City to pay the bills, Walter Johnson dug postholes for the Idaho Telephone Company, Smoky Joe Wood and countless other baseball players spent their winters working the family farm and Rube Marquard passed three winters hoofing round the vaudeville circuit on stage with his wife, Blossom