Good luck is a residue of preparation. Jack Youngblood… Good luck is a residue of preparation. — Jack Youngblood Tags: #Good, #Luck, #JackYoungblood, #American, #Athlete Mini who’s who: Jack Youngblood : American Athlete Born: January 26, 1950 Let us help you with good luck is a residue of preparation. jack youngblood… today! Submit a Comment Cancel replyYou must be logged in to post a comment.