Conversation so far:
Was Bart Starr the packer's coach?
He was a quarterback and coach for the Packers.
How long was Bart Starr the Packers coach?
He led the Packers for nine years
Did Bart Starr lead the Packers to any victories?
His regular season record was a disappointing 52–76–2 (.408), with a playoff record of 1–1.

Question: what was his biggest win?
Self-contained rewrite: What was Bart Starr's biggest win with the Packers?