Longtime Chicago advertising executive Bernie Pitzel is establishing a closer relationship with the Jacobs Agency Chicago. After being named creative in residence at the ad shop three years ago, Pitzel has now been named to the full-time post of group creative director at the Jacobs Agency. Pitzel's new role will give him greater oversight of the agency's creative department. Pitzel will report to Executive Creative Director Flora Caputo. Pitzel's expanded role at the Jacobs Agency comes in the…