Not sure if this has already been mentioned, but Hutson almost did not become a Packer:

Had it not been for a unique decision by NFL President Joe Carr, Hutson might never have become a landmark pass-catcher. After college, Don signed contracts with both the pass-minded Packers and the NFL’s Brooklyn Dodgers, a team that rarely passed. Carr ruled the contract with the earliest postmark would be honored. The Packers' contract was postmarked 8:30 a.m., 17 minutes earlier than the Dodgers' pact. Thus Hutson became a Packer.