7. You are a project manager at a biotech company, where you are leading a cross functional team to develop a treatment for diabetes. The organization has a weak matrix structure, where al of your team members report to different functional managers and none of the team member report to you directly. Your project has extremely high visibility in the company, and there is a lot of pressure on you to deliver on time and within budget. However, you are concerned whether you will have the necessary authority and power to complete the project deliverables. Which of the following types of powers will be MOST effective in your situation?