GlobalCast Resources has done a great job answering this question at…

https://www.youtube.com/watch?v=l8EMGv7CSSs

in the next mobilization training video (that you could show to your staff or church missions team). This short video could spark a great discussion on mobilizing to the last, the least, and the lost, while not becoming judgmental about those who feel they have a different calling. It’s VERY interesting to note that as the presenter in this video is sharing, he’s actually speaking from a location in SE Asia to which he, himself, has felt called. So, even though his heart is firmly called as a mobilizer, he has felt a personally calling to work among the lost in SE Asia while he does so. Awesome stuff.