Hi Sara
After our initial preparation meeting we already had the first impression what kind of data users were looking for (Logistic & Finance data).
So we created two teams who then discussed the details further with relevant Sales & Finance departments to understand the reporting requirements.
After completion of this phase both teams worked in parallel to develop and realize reporting solution in BI for the users.
Understanding/Clarification is more important than points so please do post if things are still not clear :-)
Ashish