We are all taught that there isn't an I in team, but when it comes to interviewing it is important for the hiring manager/team to understand what you have accomplished on your own or what your role/responsibilities were on a group project. When candidates talk in "we" it is assumed they are not able to perform on their own and they need support from team members. When providing examples where you worked on a team, it is best to say "as a team we completed the project on-time and within budget and I was responsible for managing and staying on top of our chosen vendor".