Not only that ... he was legitimately good. He had a 4.58 SIERRA last year. His past 8 seasons by sierra are 5.14, 4.27, 4.77, 4.28, 4.38, 4.63, 4.58, 5.01. His skills haven't changed at all, just his ERA has which is basically random over a single season. Chacin anchored the staff of the best team record wise in the National League last season. He was decent all year, but was especially good from September on last year. I realize your analytics say otherwise, but sometimes numbers don't tell the whole story.