Innovation is a crucial component of organizations strategies, which provides a source of competitive advantage and sustainable economic growth. The innovation process at organizations encompasses phases of creativity, i.e. idea generation and innovation implementation per se, i.e. idea implementation. These organizations have also increasingly been adopting work teams as their main organizing structure. Along these lines, innovation is argued to be a socio-political process, which involves various individuals and work teams at organizations. These work teams usually face challenges during the innovation process and therefore they need guidance to overcome any barriers. Likewise, these work teams are subject to leadership and scholars have proposed that leaders are a fundamental component for the advancement of innovation at organizations. Therefore, this master thesis investigates which leadership behaviors enhance the specific stage of idea implementation in new product development work teams. This thesis provides a thorough literature review on the topics of innovation, idea implementation, work teams and leadership to highlight the inherent research gap of the thesis. Subsequently, a qualitative inductive research approach is employed via semi-structured interviews to understand this phenomenon from leaders and team members perspective. The findings derived from interviews show that there are four dimensions of leadership behaviors which are important to enhance idea implementation. We present these findings in an emergent theory model in detail and also discuss and juxtapose them with contemporary literature and managerial implications. We conclude the thesis with a discussion on the findings, limitations of the research and further avenues of future research.