Mike Yastrzemski’s Breakout Is (Mostly) Real
There are a lot of reasons the San Francisco Giants, typically a contender now gone moribund, are hanging around the .500 mark. One is the breakout of outfielder Mike Yastrzemski, grandson of legendary Boston Red Sox Hall of Famer Carl. Hitting .294/.402/.563 for a 158 wRC+ and ranking second among MLB hitters with 2.3 WAR, Yaz: The Next Generation is a legitimate MVP candidate, though he’s likely stymied in that endeavor by Fernando Tatis Jr. But Yaz’s sterling 2020 campaign represents broad improvement in a number of areas to the extent that it’s likely that he’s truly established a new baseline of performance at age 30.
The natural inclination for the Orioles would be to think of Yastrzemski as the one that got away. Back in the 1987 Baseball Abstract, Bill James coined the term of “Ken Phelps All-Star,” referring to overlooked players who could play in the majors but for one reason or another did not have the full opportunity to prove it. Sometimes it was a limitation that teams just couldn’t overlook. Sometimes the player broke out past an age where teams could be bothered to care. Sometimes it was simply an inability to understand baseball performance. While the last seems a little mean, 1980s front offices were not particularly progressive in terms of baseball analysis. It’s useful to remember when we’re fighting over stuff like volatility of defensive measures in WAR or FIP vs. ERA that just a generation ago, drawing walks wasn’t widely accepted as both a real skill and a skill worth valuing.
But that’s not really Yastrzemski. This isn’t someone who was spending his mid-20s terrorizing Triple-A hitters and failing to get an opportunity; he put up a .688 OPS at age 24 and a .716 at 25. The last name certainly wasn’t giving him any more opportunities than he deserved. Perusing his minor league translations would give you the idea that his glove played enough to be a fifth outfielder for someone but that his bat had little of his grandfather in it. Read the rest of this entry »
