The Yankees’ biggest splash this offseason was arguably the signing of Masahiro Tanaka. After putting pen to paper on a $155 million contract, the hype is big.

As we highlighted in our 2014 Pitching Forecast, Tanaka is essentially replacing Andy Pettitte in the rotation. We get the general sense that Pettitte’s performance in 2013 was underrated, and people are forgetting just how good he was.

2013 Andy: 185.1 IP / 3.74 ERA / 3.70 FIP / 3.88 xFIP / 3.2 WAR

Andy’s WAR of 3.2 was 3rd-highest on the team (behind Cano and Kuroda, tied with Gardner). The man was simply a fantastic talent, even in his final season.

Is it realistic to think that Tanaka can best Andy’s numbers and actually represent an upgrade? Might be tough in his rookie campaign, but hopefully he will over the life of his deal — or else that contract will look frothy.