Dan Barker has joined LandaJob Advertising Staffing Specialists in Kansas City, Mo., as manager of new business development. In this post, Barker will develop new client accounts for temporary staffing. He previously worked in marketing and public relations in Chicago for the Chicago Rush of the Arena Football League. The shop also has promoted Elisa Haake to temporary staffing manager. Haake, who has been with LandaJob for four years, will be responsible for filling temp positions in creative and marketing, and recruiting freelancers within the advertising industry.