My future performan in my new group

In this new project we will build a robot and groups who built the engines have changed. In my new group we are five members Lucas, Jorge , Carmen , Noelia and I hope to do a good job all together and we will do our best so that everything goes well and we can improve the team as engines  results were not as we think.
In the group we have to share tasks and who will be the astronaut, specialist, engineer ..I have no preference for any role earlier so I do not care my role in the group