without being able to strike anybody out and with a lot of walks? I doubt it. Wade Davis in 2011 as a starter: 5.1 K/9, 3.1 BB/9 Wade Davis in 2012 as a reliever: 11.1 K/9, 3.7 BB/9 Chatwood last year: 7.3 K/9, 4.7 BB/9 Not saying he will become a closer, let alone a good one like Davis, but there is precedent for a mediocre starter with a middling K/BB rate to become a dominant reliever by increasing his K rate.