Complex sentence: The staff constantly suffers under callous management--especially Initech's smarmy vice president, Bill Lumbergh, whom Peter loathes--and is further agitated by the arrival of two consultants, Bob Slydell and Bob Porter, who are brought in to help the company downsize.
Split into simpler sentences: The staff constantly suffer under callous management, especially Initech's smarmy vice president Bill Lumbergh, whom Peter loathes. They are further agitated by the arrival of consultants Bob Slydell and Bob Porter, who are brought in to help the company downsize.