1. In the case of Retrotonics, Masters’ management style has several features ,such as disrespecting and improper decision-making. Firstly, Masters ignored his subordinates’ feeling which make them embarrassed. For example, the production manager, Lee, who suffered Masters’ criticism in front of other employees(Drew 1998, para 4). Although employees need the evaluation from the manager, they tend to accept the criticism privately. Another factor of Masters’ management style is making decisions in improper ways. According to Drew(1998, para 3), Master set difficult and stressful deadlines for the staff. This is the main reason why employees in engineering apartment are stressed. Therefore, those decisions that Masters made have negative effects on both staff and productivity. 2. There are three management styles are suit for Masters’ situation, in terms of delegating, democratic style and autocratic style. Firstly, delegating which is an important competence for managers. Delegating can avoid to interferes in management. In Masters’ case, Imakito and Lee are experienced and professional in their work. Hence, delegating assignments to them is a method to achieve the business goals effectively. Furthermore, democratic style which encourage employees to share their own opinions and advice is suit for manage the engineering department, because most staff in this department are experts in their work(Hickey et al 2005, pp.27-31). Having more discussions and communication with those high skilled workers is beneficial to set appropriate assignments for them.Lastly, autocratic style involves the chain in the department are clear for staff to understand their positions(Hickey et al 2005 pp.23-7).This style probably suit for Masters to manage the production staff, which can make them work efficiently. 3. There are several motivational techniques suit for Masters’ case,