The first concept to understand that it is not the church leadership or Missions Team/Committee's responsibility to do the work of missions on behalf of their church. Their responsibility is to mobilize the entire church in missions. That means taking seriously their leadership in informing, inspiring, and providing opportunities for every active member to do their part in missions as an intentional "world Christian" - living and aligning their lives in light of the Gospel and the Great Commission. This change of mindset will energize the whole church and eventually produce missionaries being sent out from your own church family.