Okay, so you look at K/9 and K/BB and HR's allowed. Awesome. Hits, walks, and runs allowed are kinda sorta important too. They're important looking backwards, but after three games they are in no way important as a predictive stat. Nobody's trying to predict the rest of the season. They are just saying-who has pitched better so far-Z in his 3 starts, or Marquis in his 2? Well in that case obviously Marquis has had more success, but that doesn't necessarily mean he's pitched better. It would be easy to say that he has, but with such a small sample and so many of the different variables that go into pitching, I'd have to look at the stats way deeper and after just a combined 5 starts, it wouldnt be worth it.