What are these "more direct and optimal measures" that are cheaper than code reviews?
In my experience code reviews are much cheaper than other means of raising software quality. For example unit tests only start to add real value after you have written a good bunch of them, so they form this regression-safety-net.
I haven't seen Continuous integration and refactoring being thrown out of the window because of code reviews. Quite the opposite. Code reviews usually ask the author to refactor his code further. Similarly I have no idea why one would stop continuous integration because of code reviews.
In my experience code reviews are much cheaper than other means of raising software quality. For example unit tests only start to add real value after you have written a good bunch of them, so they form this regression-safety-net.
I haven't seen Continuous integration and refactoring being thrown out of the window because of code reviews. Quite the opposite. Code reviews usually ask the author to refactor his code further. Similarly I have no idea why one would stop continuous integration because of code reviews.