Brad Meyers - 2001 - Had a solid career all told but in 2001 it appeared the Broncos had unearthed an Origin main-stay. Peaked and basically became the master of quantity > quality.
Leon Bott - 2005 - An obvious example. Bott made a name for himself in that traditional Good Friday clash against the Chooks scoring a scintillating try down the right hand touchline but was eventually exposed as more of an athlete than footballer.
Tame Tupou - 2006 - Two try Tupou was one of the best finishers in the game that year and would absolutely stampede through the defence. However, injuries and a lack of discipline kept him from progressing and despite making his Test debut that season, he quietly departed sometime in 07, never to play NRL again.
Denan Kemp - 2008 - Still a cult favourite amongst Broncos fan, Kemp was in red-hot form in 08, scoring some fantastic tries down the right hand touchline that gave Brisbane fans plenty to smile about. Got bogged down in NZ, then punctured his lung against them at Brisbane and that was the last we ever saw of him.
