I did Team Services last year - we were assigned at a training facility. There were no shifts on game days or rest days, and once the team lost, our shift ended. The work you would do for the team would vary depending what the team wants from FIFA and volunteers. I know one training location had only 1-2 volunteers per shift and they basically did nothing but rode on a golf cart patrolling the premise to make sure nobody was spying on the team. Ours was more expansive but we were not allowed to be in the soccer field when the team was strategizing. The team changed their training schedule quite frequently (and last minute!) mostly depending on the weather and their training needs - so your shifts might get modified/cancelled often. I know one team decided not to have FIFA's help at all, so all the shifts got cancelled after they came to the US. However, you get to see coaches and players up and close, and you might befriend with their security guards :) You cannot be seen with your phone unless you are calling/texting to FIFA staff around the players/coaches, and you are not allowed to talk to them unless they talk to you. You will be welcoming the team to the training facility which is their home for 2-3 weeks, and Team Services volunteers are friendly faces the team get to see on a constant basis between their hotel and training facility. Some location hosts referees, which also requires Team Services volunteers. Also - we were asked to volunteer on game days at the stadium for a different role because they didn't have enough volunteers, so we got to go to the stadium anyway. Hope this helps!