If you're a connoisseur of the work of Neifi Perez as I am–and as I know many longtime readers of The Cub Reporter are–you'll delight in this piece written by King Kaufman and posted at Salon.com.
The story, an excerpt from "Top of the Order: 25 Writers Pick Their Favorite Baseball Player of All Time," is simply too delicious for me to recap here. I will just share this passage, in which Kaufman, a Giants fan, explains how he became a Neifiphile.
It was in early June 2003, [Neifi's] first and only full season with the club, when I noticed he was a sort of secret weapon. The Giants were a good but not great 26-22 on the days when Perez made it onto the field. But when he stayed in the dugout, they were 13-1...
So I invented the Neifi Index, a measure of the contribution a player makes to his team by not playing. The Giants had a .542 winning percentage when Perez played, .929 when he did not. So his Neifi Index was .387 (.929 minus .542). I concocted the Neifi Award, given to the bench player in each league with the highest Neifi Index, and unique among baseball awards in that you or I, if we could only find our way onto a major-league team, would be a shoo-in to win it.
Postscript: in linking to Neifi's page at Baseball-Reference.com, I just saw that King Kaufman is a paid sponsor of the page, which also carries this tribute from the writer: "In his own way, he was the greatest I ever saw."