Gerald A. Cassioppi is looking forward to a year of smooth sailing as the incoming president of the DuPage County Bar Association.“I am just steering the big ship,” Cassioppi said in an interview days before he was sworn in. “I’m not looking to make any dramatic changes in one year.”The 59-year-old Cassioppi is taking over one of the largest bar groups in the state as it winds down a three-year plan that changed how it operates.Cassioppi, a partner at Momkus McCluskey Roberts LLC in Lisle, was …