Austin was let go by the Tigers at the end of 2014, despite still being under contract.
Another player who has gone on to bigger and better things is Melbourne winger Marika Koroibete.
The Fijian winger was also under contract at Concord but allowed to go elsewhere last season.
Andrew Fifita represents another poor retention tale. The Cronulla forward has gone on to represent NSW and Australia since leaving the joint venture.
And Fifita had some advice for Farah on Wednesday.
"It's ok @robbiefarah you might as well join the sharks lol, we got all your mates at the club anyway #upupcronulla #loveagoodjoke," Fifita tweeted, referring to the likes of his twin brother David, backrower Chris Heighington and three-quarter Blake Ayshford who have all done well, thanks very much, since shifting from Concord to the Shire.
Premiership winner Benji Marshall was also seen as surplus to requirements by the Tigers. But after an ill-fated liaison with rugby union, the livewire playmaker has been reborn with St George Illawarra and moved them to within touching distance of the finals.
Adam Blair struggled in his time with the Tigers but has become a genuine game-breaking forward under Wayne Bennett at the Broncos this year.
Beau Ryan, Tim Moltzen and Bryce Gibbs are other notables who have been given their marching orders by the club.
-AAP