Cooperate as much as possible on a local level. If we are going to reach the cities for Christ it will not be solitary churches and solitary denominations. Church planters love to claim the uniqueness of their church plant. If in the process of proclaiming the uniqueness of your church plant you denigrate others who are about the same work of the gospel, you should be ashamed. It is a necessity that we be biblically faithful, culturally relevant, and counter-culturally helpful.