2 Timothy 2:2 as a basis for church planting

"And what you have heard from me in the presence of many witnesses entrust to faithful men who will be able to teach others also." - 2 Timothy 2:2

Raising up others to enable them to do what the Lord has called them to do. Entrusting faithful men with the work of the Lord.

This more and more feels like a calling. I want to teach at a seminary, but I more and more think preparing people to lead big churches is the wrong way to go. Are there seminaries teaching people to plant movements instead of mega-churches? I want in.

This is the verse often quoted by church planting movements. They follow this as a model of expansion instead of leaning more and more heavily on the vision of a single church leader. Please someone help me understand why so many people disagree with that...