One imperative for the life of the Church is Biblical saturation. The doctrinal and textual ignorance of Christians can never be underestimated – myself included. Sunday morning sermons are not the primary place to combat this problem. In the context of the liturgy, sermons must hold to a certain, shorter length and they do not allow for interaction. My belief is that the pastor should hew to the lectionary cycle and preach from it on Sunday mornings.
So how can the Church address the wider deficiencies amongst Christians? I think that what Calvary Chapel has done in their verse by verse exposition of Scripture is one helpful approach. A pastor or another teacher could take one night a week and go through every book of the Bible, verse by verse, basically riffing on the text as he goes and perhaps taking questions – though not necessarily. Calvary does this admirably, but unfortunately with some preconceptions (i.e., pretrib rapture is a tenet of the faith) that hamper their results. Nevertheless, gettings taught on everything instead of just the things that interest the pastor leads to a much deeper appreciation of Scripture, theology and the sweep of God’s story. This is something that can be done ecumenically, no single denomination has a monopoly on the Bible. Any church can do it, all of us should do it.