Part 1:
Practice extreme zero tolerance to any hindrance of the Gospel. This way, it helps one clearly discern much more than just what the church's affiliation title says. This is not the say that someone who is afraid or doesn't wish to speak of the Gospel is hindering the great commission. That is just a personal issue, not an ecclesiastic one, patient solution is hopeful.
However, if there is no zeal for fellowshipping with those who love the Gospel, those who are inquiring about the gospel, that is a hindrance. I need not mention about forbidding or discouraging others from the Gospel.
First of all, the Gospel must be firmly and clearly defined. It is not about finding good people into the church. It is not about socializing. I have to mentioned these because that is what most if not all churches (particularly immigrant churches) fall trap to. Even that is not the chief problem. The chief cause of this is the denial of such crime. Denial because everyone has the textbook version of the Gospel and it seems that that is enough with the Gospel.
Secondly, if there