Last April, I successfully forecasted that Didi Gregorius (2.3 Projected WAR, 2.7 Actual WAR) and Dellin Betances (1.4 Projected, 2.9 Actual) would overperform, and that Brian McCann (2.9 Projected, 1.3 Actual) would underperform. My only miss was picking CC Sabathia (1.6 Projected, 2.6 Actual) to underperform in a season in which he actually enjoyed a decent bounce-back. As fans, let's hope I'm right about the overperformers and wrong about the underperformers in 2017.
All projections based on the Steamer system, which is neatly displayed on Fangraphs. Yankees Steamer projections are found here. (Some proof that Steamer is fallible: The system projects the retired Mark Teixeira to log one at-bat this season.)