Many church evangelists strive to "get souls saved" but there is a flaw in the approach. Jesus came to seek and save the lost (Luke 19:10), and so should we (John 14:15), but Jesus never left anyone to fend for themselves. He walked with the first 12 disciples for 3 years and discipled them. Jesus commanded that we make disciples (Matthew 28:18-20). That means that we need to spend time with them, actually discipling them, not just having them say a prayer (which is the first step) and then expecting them to just jump into a church a know exactly what is expected of them and what is going on.
The local church is the biblical method of growing the kingdom of God and it is the channel where new believers should congregate and be discipled, but I have found that there is a great chasm (a huge gap) between a long time attending christian disciple and a new believer who has just walked into church and has no idea what it's all about. There is a huge lack of simple step-by-step discipleship material and people willing to take the time to disciple people correctly and to the point that they are able to disciple others in the same and effective way.
The concern is that over time we are gathering church goers, not making disciples. What's the difference? Well, a church goer is a good congregational citizen and a great way to fill up seats in the church. A church goer is someone who goes to church every Sunday, sings a few songs, listens to a sermon and then goes home to do what they did last week, and repeat, over and over again. However, when you start asking those church goers this question, "When last have you discipled someone to being a fully mature disciples of Jesus Christ?", or even when you ask the church goer a simpler question, "When last did you tell someone about Jesus Christ" the answer are staggeringly disappointing. It's not the "church goers" fault, it's the fault of the church organisations and their current "come to church to meet Jesus" formulaic tradition.
On the other hand, a true Disciple of Jesus Christ, is a person who was led to the Lord Jesus and has surrendered their lives to Jesus as Lord and Saviour, who loves Jesus and follows His commands. A disciples of Jesus is someone who has encountered Jesus and who has been discipled by a mature disciple of Jesus Christ, to the point of being able to disciple someone else. It's the 2 Timothy 2:2 principle "And the things you have heard me say in the presence of many witnesses entrust to reliable people who will also be qualified to teach others."
So how can churches address this? Well most churches have a worship team or a hosting team etc, that have a specific function in the church and they all do their ministry very well, but why not have a Discipleship team? Discipleship teams are people who are trained to lead new believers into becoming fully mature disciples. These teams invite new people to their homes, share a meal with the new person or family and dedicate their time to discipling that person or family as their "JUST ONE" to the point of maturity in Christ. Maturity meaning that are able to disciple their own "JUST ONE".