This research project investigates the role of line managers and leaders in employee development and wellbeing at Marriott Hotel. The report outlines the research aim, which is to explore these factors within the context of the hotel. It details the research methodology, including the use of a descriptive research design, positivism philosophy, quantitative investigation, and a deductive approach. The study employs a questionnaire strategy to gather primary data, supplemented by secondary data from various sources. The report covers data collection methods, sampling techniques, and considerations for reliability, validity, cost, access, and ethical issues. Content analysis is used to analyze findings from a questionnaire, presenting themes related to employee development, engagement, benefits, and the mechanisms employed by line managers. The findings highlight the importance of employee engagement, the benefits of employee development, and the strategies used by managers to influence employee engagement and wellbeing. The report concludes with an analysis of the effectiveness of the research methods and suggests alternative methodologies.