Agree with this. Competition is always good to keep people motivated to bring their best each and everyday. However, if its taken to the point where one is stepping on someone else to move up or get a promotion, then that type of action can kill the company culture.

Having a good communication between departments is key. Passing knowledge between departments for projects and events also helps drive good culture and helps build better relationships within the company. At the end of the day, everyone should ideally have the same goal in mind, in which they want the company and everyone to succeed.