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OLIVIER DE WECK: Teamwork is
an essential part of the class.

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Because any great system
or product is really

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the result of a
teamwork, where in a team

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you have to balance
essentially your own ideas

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and your own desires with
what your teammates think.

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And the dynamics
of successful teams

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show that diversity
is important,

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being able to openly
share ideas, also

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the ability to compromise and
not always getting one's way.

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What we found over the years--
and I think this is also

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supported by research and
scholarship in design--

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is that the optimal
team size is about five.

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Four to six, maybe
up to seven people

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is the ideal size of teams
for this kind of project.

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And why is that?

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If you create a
smaller team, you

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have less diversity of ideas.

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And you also have less man
or brain power, of course,

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to get work done.

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Since once you decompose the
project into its elements,

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each of these elements
needs to be done carefully.

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So you want to
have a team that's

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large enough to do the work
within the time constraints.

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On the other hand, if
the team is too large,

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then there's a lot
of coordination,

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there's a lot of overhead.

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Just being able to meet whether
it's physically or online

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becomes harder.

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And the efficiency of
the team goes down.

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And so we found that a team
size of about five people

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is ideal for this
kind of a project.