Creativity (i.e., the generation of novel and useful ideas) can enhance firm competitiveness under the right conditions. As diverse teams are usually assembled to produce creative ideas, and cognitive team diversity (i.e., diversity among team members in terms of thinking, knowledge, skills, world views, and beliefs) provides diverse cognitive resources for generating creative ideas, interest in the role of cognitive team diversity in creativity has been growing. Extant research suggests that cognitive team diversity can enhance creativity, especially when transformational leadership and team perspective-taking are high. Few studies, however, have theorised and examined how cognitive team diversity influences creativity. For example, does cognitive team diversity similarly influence team creativity and individual creativity? And, does this process involve the same intrinsic motivation mechanism?