Of his list he says:
I have here, on the main, deliberately chosen to not list books that attend primarily to issues of homiletical method (there are a plethora of excellent studies available on this) but rather to draw attention to those in which the evangelical content of preaching is the main concern. This decision was made because it is here at this point that the church faces its greatest crisis. We have loads of ‘excellent speakers’ and ‘gifted communicators’ who have absolutely nothing to say that’s worth hearing, let alone the Word of God.
Kind of what I was saying with: We don't need better preachers, we need to preach a better gospel.