A rugby team has 15 players, more than the optimal number for a work team. At work, the optimal number depends on the task, the skills required, and the time provided to complete the task. As a general rule, experts suggest teams have .

5 to 9 members

Explanation:

Optimal number is simply known to be the best or favorable or required number at a particular point in time.

Normally, every work, especially works that related to sport use to have the required number of people that can work with them at a particular time, most especially when going for a game.

In this case, the expert suggested that, the optimal number of members for a team should be within 5 to 9. And this should include all the needed personnel.  

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new communications technology has affected the way social movements are organized because nowadays, social movements rely on social networks and the media to get different people with a similar way of thinking in contact, and thus, get them to mobilize for a greater cause.

individuals only participate in collective action when they feel identified with it. is in this aspect that social media becomes relevant, because it guarantees communication among all individuals and organizes the social actions that are going to be carried out, i.e., the social movements.

in addition, being covered by the media is important to validate the message and make it relevant in the social agenda, as well as to reach more people who can share interests, appealing to public sympathy for their cause.

in conclusion, it is by social networks and social media that social movement is given birth; by connecting different individuals with similar ideas and organizing them to mobilize for a greater cause.