Rugby vs Soccer

I'm working on a project now where I'm trying to create a clear separation between the multidisciplinary team process for product implementation, vs product innovation.  On paper they look pretty much the same.  All the disciplines are represented, and the team is aligned around a common goal.

However, when you see the teams working together, something very different is happening between them.  The best analogy I've come up with so far is that the product implementation team behaves much like a soccer team.  The roles are clearly laid out, and the team members are executing specific tasks based on where the ball is at the moment.  On the other hand, the innovation team is operating more like a rugby team.  The roles are less clearly defined, and in a scrum, it's difficult to tell who's doing what, except that they all want to get the ball somewhere else and are working toward that end.

Implementation teams can work with clearly defined roles because the end product they are charged with making has been clearly defined.  Innovation teams are charged with figuring out what should be made. As such, clarity around roles is difficult, and it makes sense to have people who are more flexible and can fill gaps.

What are the characteristics you would look for if you needed to hire people to fill each type of team.  How are they similar, and how are they different?