As plans came together for the space that houses Brennan’s Work and Leisure, co-owner Kevin Brennan pulled ideas for interior design and furnishings from an eclectic mix of companies. Guided by the mantra “Don’t change too much or too little,” he took pieces of the successful model that’s already established at the Brennan’s Central West End location and incorporated them for the new Midtown co-working space, which also offers offices and a café.