Phoenix, 2016-May-02 — /EPR Retail News/ — The Board of Directors of PetSmart Charities®today announced that it has appointed Dr. David Haworth, DVM, PhD, as its new President, effective May 2. A veterinarian by training, Dr. Haworth has more than 15 years of experience in the animal health industry. Commenting on the announcement, Steve Marton, Chairman…