How to create a contributor-rich team environment
Professionals working according to their job description; this used to be appreciated by a majority of professionals. However, since companies started to put emphasis on teamwork, things have changed a little bit. Teamwork sometimes requires you to do some non-professional work outside of your job description. It's because, accomplishment of the team goals became individuals' objectives.
Teamwork requires everyone's contribution to the team, or in other words team members. Teamwork requires you to keep each team member's motivation high. Their motivation might get affected by your working attitude or enthusiasm. They might want to get your consultation at any time. They might be encouraged by your smile. They might like your leadership. They might benefit from your kind gestures to make working more convenient.
Teamwork assumes everyone in the team has the same level of contribution or commitment to the team. However, there always are some free-riders when you start a team. The difficulty is to overcome the suspicion that some others are taking advantage on you. The danger of such suspicion invites the "bad money drives out good" phenomenon, and if that happened, it becomes harder to emphasize teamwork than before.
To achieve a contributor-rich team environment, the simplest way is for you to become the largest contributor yourself and start appreciating others when they contribute. That is, in another way, called leadership. You don't have to be assigned as a leader to take this role. By doing so for some while, your working environment would gradually become a contributor-rich team environment. The fruit is, that it would become a fun working environment.