OK list
I am a huge fan of Lemond.
Just letting my biases be known.
Lemond was always known for his geometry which was, as Norris pointed out, a relaxed seattube angle coupled to a long top tube. Perhaps his Cinelli was a little big for him when he bought it (possibly used? It looks older than what would had been a new bike in the late seventies) and he got used to the position?
I know that I have a Lemond TSX and the position is very different from most bikes, but allows for a powerful pedal stroke - or that's entirely my Walter Mittly like hallucination.
But Lemond is off topic, I think.
Anyway, If'n anyone is interested, i have a nice JP Weigle TT/Aero frame made of Columbus AIR tubing for sale on Ebay right now, a really unique example of his work, it's item# 280617410176
-Harry Schwartzman
Brooklyn, NY