1. The mission of the church has gotten sidetracked.
2. The church has become over-accommodating.
3. The gospel is assumed.
4. There is no careful doctrinal delineation.
5. The ministry of the word is diminished.
6. People are not called to repentance.
7. There is no example of carefully handling specific texts of Scripture.
8. There is no functioning ecclesiology.
9. There is an almost complete disregard for church discipline.
10. The real problem is something other than sin and the real remedy is something other than a Savior.
Read the article If We Believe All the Same Things, Why Do Our Churches Seem So Different? for DeYoung's explanation of his ten points. His conclusion:
The evangelical church needs depth where it is shallow, thoughtfulness where it is pragmatic, and conviction where it has become compromised. A casual adherence to a formal set of basic doctrines does not guarantee real unity and does not ensure genuine spiritual strength.