Evangelism and Discipleship go Together

It seems strange to me that many people (churches?) seem to separate evangelism and discipleship as two distinct ministries. Of course, I understand that they are not the same thing, but they certainly go together. It's crazy to me to think that it's possible to not see that. The Great Commission in Matthew 28:18-20 is clear that our task is to 'make disciples.' That is, we are to make followers of Christ Jesus as we 'go', 'baptize', and 'teach'. How is it possible for us to think we fulfill the command of Christ to make disciples of all nations if we neglect to teach them to obey all that He has commanded?