I think the first thing you should implement is your own understanding of the current codebase and processes. I have seen it now several times that new guys co

I think the first thing you should implement is your own understanding of the current codebase and processes. I have seen it now several times that new guys come in and immediately push for their pet architecture without even trying to consider that we are not complete dummies and a lot of things are there for a reason or are at least not that easy to change. Usually it ends with them being rejected and then getting frustrated because they didn't get their way. On the other hand we also have people come in, help with the current codebase and after a while they make proposals for improvement that are based in reality. These people integrate well and are quickly respected team members.