Pari-Mutuel Clerk Jo Ann Mullen Named 'Employee Of Week' Jo Ann Mullen has worked at Hollywood Park for the past 11 years. Steve Turner Photo Jo Ann Mullen, who has worked as a pari-mutuel clerk for 25 years, has been selected "Employee of the Week" for the week beginning May 18 by Hollywood Park's Goodwill Committee. Jo Ann has worked full time at Hollywood Park for the past 11 years. She loves her job and "has met some wonderful customers who have become my good friends over the years." The job is exciting, interesting and fun! Each day is a new experience." 'I greet my customers with a smile, friendliness, and wish them good luck. I try to give the new people a great experience by helping them with their bets, being patient and thanking them for coming," explains Jo Ann. "I really love serving people and I believe they deserve the best.