Wayne McDill diverges little from standard works in the classical tradition of homiletics though he does make a contribution with his focus on 12 essential skills for preaching. He argues persuasively that it is vital for preachers to develop specific skills in order to preach effectively.
McDill work is a "theoretical-technical homiletic" (David Buttrick) in that he does not provide a thorough discussion of sermon delivery, the theology of preaching, the role of preaching in the church, etc. He does address some of these topics in his conclusion, but not in a comprehensive manner.
His section on "Text Analysis" could be improved significantly. These chapters could be improved with a more thorough-going presentation of some of the current resources on Inductive Bible Study. His approach to developing sermons employs the deductive approach. His description of inductive preaching seems to be a simplistic understanding because it does not reflect inductive preaching's idea of gathering the congregants' attention to move them toward the biblical text. However, he correctly points out that most sermons will include elements of both induction and deduction.
McDill does not delve into the distinctions between topical, textual, and expository sermons (contra. James Braga). He seems to anticipate that all sermons will expose the biblical text. He does not recommend subpoints to main points in sermons as do some of the classic homileticians. Yet, some of his recommendations (e.g. "Balancing Persuasive Elements") seem somewhat pedantic. I found his chapter on skill 8, "Exploring Natural Analogies," helpful. I agree with his concern that much of evangelical preaching is anthropological. However, he recommends the "Motivated Sequence Method" (p. 203), whose beginning point is the congregation. How can one employ the "Motivated Sequence Method" and avoid the criticism of preaching anthropocentric sermons?
The author could improve his work by discussing the new homiletic and by providing a rationale for employing almost exclusively the deductive approach. However, I appreciate his contribution to the development of skills for preaching and the steps and procedures for moving from text to sermon.