By Mike Schrage The four-day National Missionary Convention requires more than a year of planning, preparations, and prayer from hundreds of people you will never see on stage. In missions, for every cross-cultural “goer” there are hundreds of “senders.” So too, at the convention, for every person in the public eye or onstage, there are many more servants behind the scenes to guarantee that all goes as planned. None of them are more important, or perhaps more unknown, than the army of those who pray for the convention. Prayers of Preparation The NMC venue is chosen three years in advance,