Interesting article about some myths and facts of software engeneering: What is the correlation between code coverage and bugs? Does TDD help to eliminate bugs?
Organizational metrics, which are not related to the code, can predict software failure-proneness with a precision and recall of 85 percent. This is a significantly higher precision than traditional metrics such as churn, complexity, or coverage that have been used until now to predict failure-proneness. This was probably the most surprising outcome of all the studies.