Is your church in some way connecting faith and work for individuals? Why is this rarely preached or taught?
There are always quantitative indications of growth that are easy to point out. But what about the qualitative results?
Are you a big finisher with your sermons? Do you keep in mind that decisions people make during this time are crucial?
Your students probably already know who Jesus is and what He did. But do they really understand the deeper meaning of their salvation?