The most basic practical division among evangelical pastors today may be between those who pursue faithfulness and assume relevance and those who pursue relevance and assume faithfulness.
This is part of Mark Dever's thought-provoking post at Together for the Gospel. Later in the article he cites a conversation with Don Carson, the gist of which was along these lines:
The first generation has the Gospel, the second generation assumes the Gospel, the third generation loses the Gospel.
Dever concludes with:
Consider what you and I will do to the Gospel message in our churches if we continue to change the "presentation" of the Gospel until we begin to get a response.
Pursue faithfulness and relevance. Know that the Gospel is always relevant. NEVER assume the Gospel.