You've heard the phrase "pitching wins championships" used in multiple sports, many times. Which has led to a plethora of Yankees fans to beg Brian Cashman to somehow acquire a top starter or two every season since... well... the beginning of the franchise? I don't know for sure, but it seems like as long as I've conversed with other Yankees fans I've heard the words "they need pitching" said quite a bit.
Well, how about we take a look at the fWAR (Fangraphs' version of WAR is better for pitching) of a couple of team's pitching staffs from 2018...
Team A
Starters - 16.9
Releivers - 9.7
Total - 26.6
Team B
Starters - 15.8
Relievers - 4.9
Total - 20.6
Before I go on how about we add offense to the mix? I wouldn't want you thinking that one of those teams above is far and away better at scoring runs, and thus the question was pointless. So here is the bWAR for each team (Baseball Reference's version of WAR is better for batting)...
Team A - 29.5
Team B - 27.3
Looking at thoses numbers you'd probably say that Team A is clearly better. Well, based on which team hoisted the Commissioner's Trophy the other night, you'd be wrong. Because Team B is the Boston Red Sox. And wouldn't you know it? Team A is the New York Yankees.
It's true that championships are not won on paper. On paper, Brian Cashman could construct the greatest team of all time, but they can still fall short when it comes to actually playing the game. And that's what happened last season.
So while it's true that the Yankees don't need Bryce Harper's or Manny Machado's offensive output for 2019, there will come a time when they are happy to have it. Besides, when a talent like Harper and Machado, who are still in their mid-20s, becomes available for nothing more than money, then you go for it. Especially when you're the Yankees and you have plenty of money to spend.
Another reality is that the Yankees don't need to add two elite pitchers to the rotation. Adding Patrick Corbin, and one of CC Sabathia or J.A. Happ, makes it possible for the Yankees to take a chance on a young starter from another team via trade (like Nick Pivetta), or even from their own stock of prospects (Justus Sheffield, Chance Adams, etc.).
If you want numbers to back that up, here you go...
2018 fWAR
Luis Severino - 5.7
Patrick Corbin - 6.3
Masahiro Tanaka - 2.7
CC Sabathia - 2.5
Total - 17.2
As long as the fifth starter doesn't produce a negative fWAR for the Yankees in 2019 they don't need to make a huge trade for somebody like Jameson Taillon, Madison Bumgarner, or Zack Greinke.
Which is why trading Miguel Andujar is unnecessary. Miggy would either be used to get a top starter, who is not needed, or for Paul Goldschmidt, which would be a waste since Goldy is only signed through the next season.
There is one area that the Yankees truly need to improve upon, but I'll save that discussion for another time.