I meant less about individual statistics, but more of "what were they doing that October." When the Sox have pitched well, they've gone to the playoffs. When the Sox have pitched poorly, they've been medicore to also rans(2005, 2006, 2010, 2012, 2014, 2015). If it wasn't for the pitching, Ortiz and JD would have never made it to the WS with the Sox.
2004: Schilling addition
2007: Beckett, Paplebon, Lester rookie year
2013: renaissance for Lester/Buch/Lackey and Kojimania
2018: Sale/Price/Eovaldi/Kimbrell