A little research:
"Fired 16 months ago, Duquette isn't talking. Duquette's now-famous explanation -- that Clemens was embarking on "the twilight of his career'' -- came to ultimately haunt Duquette and, just maybe, motivate the pitcher himself.
With the benefit of hindsight, Duquette's contention now seems absurd. Since leaving Boston, Clemens has gone on to win 107 games, three Cy Young Awards, two mythical pitching Triple Crowns and two world championships.
Some twilight."