As a fascinating concept, the mechanisms of complex adaptive system (CAS) attracted many researchers from a variety of disciplines. Nevertheless, how the mechanism-related variables, such as strategic resonance, accreting nodes, pattern forming, and catalytic behavior of organization, impact the firm product innovativeness is rarely addressed empirically in the new product development (NPD) literature. Also, there exist limited studies on the antecedents of the mechanisms of CAS in the NPD literature. In this respect, we identified and operationalized the adaptive management practices, which involve bonding, nonlinear, and attractor behaviors of management, as antecedents of mechanisms and firm product innovativeness. By studying 235 firms, we found that (1) strategic resonance and accreting nodes are positively related to firm product innovativeness, (2) bonding, nonlinear, and attractor behaviors of management positively influence the mechanism variables, and (3) market and technology turbulence impact the adaptive management practices. We also found that mechanisms of CAS partially mediate the relationship between adaptive management practices and firm product innovativeness.