There should be no mention of the mighty Triple Crown champion Secretariat without pointing to jockey Ron Turcotte as an integral member of a dynamite team. It might appear from watching replays of the Kentucky Derby, Preakness Stakes, and Belmont Stakes in 1973 as if Turcotte was merely a passenger taken for a wonderful ride by the gleaming colt they called “Big Red.” But Penny Chenery, Secretariat’s owner, knew better.