The Brisbane Lions experienced tremendous success to start this century off going back-to-back-to-back (2001-03) before a slow decline that saw them lose the 04' Grand Final and only make the finals once since (2009).

In order to make its way up the ladder, Brisbane were forced to make personnel changes including many players who have gone on to lead successful careers at rival clubs.

Either seeking opportunity elsewhere or falling out of favour with the coach/board, players opted to change the Lion that was originally on their jersey, to something else.

Some trades worked out for Brisbane, but as most people are aware, a lot didn't.

Here are the top 10 players Brisbane have let go since 2003.

3. Jack Redden

Redden made his debut in round 15, 2009 against Geelong and maintained his spot in the side, including two finals series matches.

From then on, he was able to play every game of every season ranging from years 2010-2013 showing solid improvement and good consistency in his football.

With injury being a problem for Redden, he wasn't able to take his game to the next level. He was rated by his teammates as one of the most underrated players.

However, his time at Brisbane didn't really equate to much. He finished with 129 games before being traded to the Eagles at the end of 2015.

His first two years at the Eagles were somewhat disappointing given the talent and drive Redden has to achieve greatness.

After a solid season in 2017, Redden took his game to another level in the Eagles' premiership year where he was named West Coast's player of the finals.

He found really good form toward the back end of the year and has set him up in season 2019.

BRISBANE, AUSTRALIA - JULY 25: Jack Redden of the Lions kicks during the round 17 AFL match between the Brisbane Lions and the North Melbourne Kangaroos at The Gabba on July 25, 2015 in Brisbane, Australia. (Photo by Chris Hyde/Getty Images)