The president and CEO of Q Casino and Hotel in Dubuque, Jesus Aviles, will step down by the end of the year. Alives has served as president and CEO of the casino for the past 14 years and 45 years in the gaming industry altogether. Meanwhile, the board of directors of the Dubuque Racing Association on Tuesday selected an experienced gaming executive to succeed him. The board of the DRA, which serves as the nonprofit license holder for both Dubuque casinos, unanimously authorized an employment agreement with Alex Dixon, a native of Nevada, who emerged as the leading candidate. DRA Board Chairman Kevin Lynch said the casino already has a verbal agreement in place with Dixon and now will finalize the contractual language.