Most in the Church know that being connected to the Mission of God is vital for our faithful obedience to all that God has called to be and do as His people. Working out the “How” of that is another story alltogether. I would offer the following links as good starting points for your thoughtful efforts in fulfilling the Mission of God in your church.
Keving DeYoung’s has some great thoughts in his post Questions for your Missions Budget.
Also consider A Hundred Different Directions in your missions planning.
Blessings to you!