

A baseball prodigy whose immense minor-league hype never fully translated, making him a cautionary tale of prospect pressure.
Gregg Jefferies entered professional baseball not as a player but as a phenomenon. Drafted by the New York Mets in 1985, he dominated the minors with a smooth, switch-hitting swing, becoming the first player to twice win Baseball America's Minor League Player of the Year. The New York media anointed him the franchise savior, a weight that proved crushing. His 1989 major league debut was met with fanfare, but his defensive struggles and the intense scrutiny in a tough market led to a rocky relationship with fans and media. Traded to the Kansas City Royals in 1991, he found more stable success, making two All-Star teams and later posting strong offensive numbers for the St. Louis Cardinals. His 14-year career was solid by any objective measure, yet it was forever measured against the stratospheric expectations he carried as a can't-miss kid, making his journey a defining story of baseball's prospect culture.
1965–1980
The latchkey kids. Raised during divorce, recession, and the end of the Cold War. Skeptical, self-reliant, media-literate. They invented indie culture, grunge, and the early internet — then watched the Boomers take credit.
Gregg was born in 1967, placing them squarely in the Generation X. The events that shaped this generation — economic uncertainty, the end of the Cold War, and the rise of personal computing — shaped the world they entered and the choices available to them.
The biggest hits of 1967
#1 Movie
The Jungle Book
Best Picture
In the Heat of the Night
#1 TV Show
The Andy Griffith Show
The world at every milestone
Summer of Love in San Francisco; first Super Bowl
Watergate break-in; last Apollo Moon mission
John Lennon shot and killed in New York
Internet adopts TCP/IP, creating the modern internet
Live Aid concerts raise money for Ethiopian famine
Pan Am Flight 103 bombed over Lockerbie
Princess Diana dies in Paris car crash; Harry Potter published
iPhone released; Great Recession begins
#MeToo movement; solar eclipse crosses the US
He was such a prized prospect that the Mets reportedly refused to include him in a trade for star pitcher Andy Van Slyke.
Jefferies was an accomplished amateur violinist, a skill he developed in his youth.
After retirement, he became a highly successful hitting coach for youth and high school players in California.
His father, Richard Jefferies, built a backyard batting cage and trained him rigorously from a very young age.
“I just wanted to hit the ball hard and play the game right.”