When the Cubs acquired Jose Quintana in 2017, he had been one of the most consistent starters in the American League for the five previous seasons.
He threw 200+ innings in four of those five seasons, and didn’t in the fifth because that was his rookie season when he made his debut in May 2012.
His ERAs ranged from 3.20 to 3.76 in his White Sox years from 2012-16. His WHIP was again in a narrow range: 1.163 to 1.350. Even though he had struggled a bit early in 2017 (4.