Mary Tully November 4, 2016 Dog of the Week, Q&A, Live Training, How to Train Tully’s Training Live – Pitbull Dog Park Training and Exercise [video] Mary Tully November 4, 2016 Dog of the Week, Q&A, Live Training, How to Train Head Trainer, Mary Tully, explains the importance of play to a Pitbull’s healthy development, and introduces a stellar strategy for taking you Pit Bull to the dog park.