1. Instantly stop being a developer. Trust your team -- if they cannot figure it out, most probably you won't be able either. (Saying that because for some time

1. Instantly stop being a developer. Trust your team -- if they cannot figure it out, most probably you won't be able either. (Saying that because for some time at the beginning it will feel like you can.) Remember, they are at least as smart as you are, and have been thinking about the problem for much more time than you can dedicate to it. If they fail, you alone won't save it single-handedly. 2. Managing open-source-based codebase is vastly different from managing the closed-source one. Mixing both (a reality) will require special thinking and measures. It will require two very different sorts of developers and activities.