Just coming here to post this. He was left point on the most devastating power play unit I've ever seen. Orr played right point. Up front, Espo centered Bucyk and McKenzie.
I kept stats back in those days. I made up a score sheet form and photocopied it at work. Watched or listened to every game, even if it meant excusing myself from company at inopportune moments, and entered every scoring-related detail on that game's sheet. Wary of jeopardizing my job by writing a computer program on company time, I used my trusty slide rule to generate my own set of statistics from the raw data I'd compiled. One such stat was power play conversion percentage, not a common metric then (although it occurred to me that "mean time between PPG" would be a more meaningful number). Those handwritten documents are long-lost, but I was prepared to assert from memory that the PP conversion rate for the 1971 Bruins was north of 30%--until I checked hockey-reference.com and learned that it was actually 27.7%, which is still a formidable accomplishment, considering that league average was 18.8% that year.
Stanfield's line accounted for 106 goals in 1971 (24 for him, 51 for Bucyk, 31 for McKenzie), not bad for a second line, behind Esposito-Hodge-Cashman's 140 goals.
He came to the Bruins with Esposito and Hodge from the Black Hawks in 1967 for Pit Martin, Gilles Marotte, and Jack Norris, in a trade still considered one of the most magnificent heists ever. He was a steady, unassuming player who maybe didn't fit into the Big Bad Bruins stereotype, but nonetheless fit perfectly into the role designated for him. I hated to see him go Minnesota in 1973, even though the Bruins likely got the better of the deal; Gilbert was a solid goalie and the Stars probably overvalued Stanfield because of his affiliation with the short-lived Bruins dynasty.
RIP Fred. You were part of something wonderful.