Product Development (PD) management is changing through the emergence and implementation of agile principles into existing PD frameworks. This process changes PD governance assets, even though this aspect is not yet described in existing literature. Thus, this paper introduces PD governance of agile/stage-gate hybrid solutions through a comparative study including five case companies supported by a review of existing literature. The results include an overview of applied governance assets including which are supportive for PD management. The study indicates that only assets not part of corporate governance are affected by the introduction of agile, and that unaltered corporate assets affect PD performance of the hybrid solutions negatively.