I agree usually you would meet with a manager first then a partner. Regardless of the order, I would just be prepared to demonstrate or talk about your leadership skills, project management skills, how you are a team player, open to travel, your flexibility and adaptation, your organization skills. These are the common skills they look for and think about times and situations when you have demonstrated all these skills. Be confident and ask good questions. You should be fine if you did well with the partner. I am sure you will get the job. Good Luck!