Why are you limiting it to trades within the last 10 months? Because 4 years is much more time consuming. Does it matter? There's going to be a ton of subjectivity no matter the sample size. What are the really obvious wins? Yelich trade, Lucroy trade, Thornburg trade, Rogers for Broxton/Supak, Lind trade, probably Jeffress for Scott, maybe K-Rod for Pina. What are obvious losses? Smith for Bickford/Susac, Schoop deal, Khris Davis deal. Basically everything else is either too soon to grade, debatable, or who cares. There's no way you're coming up with 80% without putting your finger on the scale.