Many design firms divide tasks for their designers, some of them are only involved in FF&Es, some are only doing CAD drafting or rendering, and some only go to the job sites. Dividing tasks can maximize the efficiency based on each designer’s strengths. However, if you are a junior level designer who works at this kind of company, you might not be able to learn the whole design process which could have negative impact if you would like to work for different design firms or run your own business in the future. If you are a senior level designer and already know all aspects of design process, working at the firms that divide tasks may give you more opportunities to focus on the tasks you are good at which will lead to better job performance and happier you.