I don’t intend to really answer the question here, but I do want to suggest a tentative way a congregation ought to structure its efforts for evangelism. Here it is; the picture says a thousand words . . .

A few points:

• I emphasize deliberate corporate evangelism, because these efforts should be about intentionally giving the Good News to people. I don’t believe touchy-feely events, where you try to “friend” people into God’s coming Kingdom, are the best way to go. This is best reserved for interpersonal relationships on a personal level. This isn’t a tactic a church should use for corporate evangelism.
• I also focus on deliberate personal evangelism, because your goal should be to get to actually telling the person the Gospel. You shouldn’t be somebody’s friend for 20 years, and hope “one day” to have an open door. Deliberately plan to work the Gospel into conversation, as appropriate. Don’t be like this.

Ciao.