What are effective strategies in finding common ground and agreement with a colleague who seems to hijack meeting productivity by undervaluing the expertise of anyone who isn't already a part of their team or department? Example: In a tech company, when the executive leadership of one department seems to make decisions that consistently undermine the planning and processes of another department. Often cross-functional meetings intended to be collaborative for high-level decision making but are derailed by that executive leader diving down to detail level in order to break apart every single minute decision.