You may find yourself naturally gravitating towards thinking in terms of you doing particular tasks, and if you are still maintaining a part-time developer role

You may find yourself naturally gravitating towards thinking in terms of you doing particular tasks, and if you are still maintaining a part-time developer role on the project, the danger exists that you will make yourself a bottle-neck on tasks. You will have to learn how to delegate. Give people the opportunity to fail. Even if someone doesn't seem like they can do a particular task, give them the chance to learn, and give them the resources to learn. This goes into always remembering to protect the future of the project. You'll receive tons of pressure to do "quick fixes" and "just brute force it" and other bullshit management lines, a lot more than when you were just a developer. It's your job to be a shield against upper management for the sake of the project. Don't short-change the long-term viability of the project and your team for short-term gains.