How long does it take for you to feel comfortable making fast, high-impact decisions when you’re in a new leadership role? What’s your secret to getting comfortable quickly?

Start with areas that you have deep expertise in to begin with. The ideal space is where you have a deep expertise, adds value to your company, in alignment with your team and quick to get results. 

I think that in order to make a confident and accurate decision in a new position, it depends on your understanding of the organization and mission. It is likely that you fully understand the purpose of the organization, so you should start by understanding the issues that each member is thinking about through communication with team members, etc. It can be said that accurate decisions should be the best strategy in the mission and at the same time to increase their motivation and the organization to move actively. I think leadership is the one that motivates team members and produces the best results.

I agree that there is more to this topic than finding comfort in decision-making in a silo. The secret to effective leadership is being able to distinguish between decisions that require collaboration and those that don't. Good collaborators know when not to collaborate (while making all people feel like their input matters). And, when in a cross-functional role or dealing with several teams, you have to learn quickly how to 'weight' each decision. A Regulatory SME shouldn't have the same weight on go-to-market strategy as someone in Strategic Marketing.