When managing projects based on Symfony2, from the technical side, it is a good idea to establish a set of rules for the project. If you haven’t established and implemented such rules yet, then they should be created as soon as possible. Why? Well, no matter how many people are working on the project, the code needs to look like it was written by one person. Every programmer who contributes to the project needs to be able to simply pick up where the other developer left off, regardless if they implemented the module or not. This allows the project to progress faster, not only with implementation, but also when it comes to code review.