“First prize is a Cadillac Eldorado…Second prize is a set of steak knives. Third prize is you’re fired,” explains Stewart Butterfield, the boss of Slack, a two-year-old software company with a $2.8 billion valuation, quoting from David Mamet’s play “Glengarry Glen Ross”.
Except he isn't actually quoting from the play because that quote and the whole Alec Baldwin character don't exist in the play. They were added when Mamet converted Glengarry Glen Ross the play into Glengarry Glen Ross the movie. It's a really interesting story, actually.
http://www.avclub.com/article/why-iglengarry-glen-rossi-alec...