When Chris Sale was traded, he had finished in the top 6 in Cy Young voting for 5 consecutive years and had 3 years of team control at a bargain price of 39.5 million. Just 2 years ago Burnes was getting bombed in AAA. They are not the same thing. Chris Sale at time of trade = 27 years old, 1110 major league innings, 3.00 ERA, 3.06 FIP, 1.07 WHIP, 4.8 K/BB, 30.1 bWAR, 27.1 fWAR Corbin Burnes as of today = 26 years old, 146 2/3 innings, 4.48 ERA, 3.85 FIP, 1.29 WHIP, 3.5 K/BB, 0.5 bWAR, 2.2 fWAR It's different, but it also isn't different. The white sox can't exactly go to the table and say "we like burnes, we want to trade for him...but these are the reasons we should get a discount". If the white sox come to the table wanting to trade for burnes, it's going to be because they think he's much more likely to be 2020 burnes going forward than 2019 burnes. The established value of sale is why we would merely get a great package in trade and not an other worldly package like the red Sox gave up. The likelihood of sale continuing to be a top 10 pitcher in the league for 3 seasons was about as high as it gets for a pitcher. Whereas with burnes there is more risk, but considering his stuff probably a small bit more upside.