I am not sure you can define a culture, it already exists and is developing "naturally" in your team. What you can try is to find out what are the motivating tr

I am not sure you can define a culture, it already exists and is developing "naturally" in your team. What you can try is to find out what are the motivating trait of your existing culture by talking with your peers, and formalize / identify the top one and put in a poster ? For example, is your team good at solving hard problems, deliver on time, have great customer satisfaction, etc ? (I don't believe you could say yes to all answers if you are totally honest..) Identify the 3 keys aspects that actually exist in the company and support/encourage those behavior.