I think the fact he's been in our best 22 says more about our list state in those years from 2008 until today then it does about him or anything that the coaches think about him. Hennemen was on the list for 7 years, Bolton for over 10, Slattery played almost a 100 games and the list goes on. The team has been rubbish, the fact he gets a game when he managed to be fit doesn't overly impress me. You could argue 3 different coaches thought Slattery was a gun player by your logic.
The guy has never finished in the top 10 for our best and fairest, never played a full season and has 2 Brownlow votes in his career. His career games per season include: 8, 6, 8, 14, 9, 2 & 0 and missed the first 6 games this year. If he was to play every game for the rest of the year and every game next year (big if) he'll just have passed the total games that Mark Bolton played. His best career average for disposals and arguably best year was 2014 when he averaged just over 20 and even that was probably just above average. His second best year in 2013 I counted 4-5 good games, 4-6 poor games and the rest "OK" (ie. middling possession count, minimal impact).
The facts are he's never given us much more than a few nice hoof goals, an above average season one time in his career and has looked poor in every game this year. He's going to be 28 in a few weeks, the training wheels need to come off and he needs to start delivering.