I'm a fan of TDD, but I'm a bigger fan of having reliable, repeatable, and complete tests period. I don't think it's productive to argue the merits of the stud

I'm a fan of TDD, but I'm a bigger fan of having reliable, repeatable, and complete tests period. I don't think it's productive to argue the merits of the study itself - better to look at the positive. What the study tells us is that it's not too late to improve your existing software with tests.