I don't really agree that unit tests should need to be re-written quite as much as indicated in the article. Our unit tests tend to have good coverage at the l

I don't really agree that unit tests should need to be re-written quite as much as indicated in the article. Our unit tests tend to have good coverage at the lower, model level. At the UI level we rely more on usability testing because it's a bit harder to test automatically and things tend to change more frequently. I do think it's best to find a balance that works for whatever particular product you're developing. If you don't follow any methodology at all you're likely to spend a lot of time reinventing the wheel. But you don't necessarily need to follow a methodology to the letter in order to have a great team and produce great software.