I agree with your ideal skills, having a team that varies in their experience and background, works well together, and has a passion and drive in their efforts as a valuable team member. Reliability, involvement, determination, and the ability to self manage are individual qualities that each member needs to have. Social skills plays a very important role in how someone cross-functionally communicates with the correct amount of respect, preparation, and effort, keeping politics to the minimum. A good team isn’t just one that gets along, but one that isn’t afraid to challenge one another or ask questions, with the idea of continuous improvement of themselves and the company. In my experience in the industry, I have seen what was thought to be a simple question result in the implementation of a new software development that led to month long conversations, budget and schedule changes, and an increase in the product’s quality. I agree that effective communication is what separates a proficient project team from a renowned project team. And quite frankly, it is incredibly fascinating to be a part of a project team that consists of members from different disciplines who work hard and passionately, work well together, and challenge one another to innovate.