I wouldn't think so, considering his year will be affected by a limited pre-season due to a training accident, and last year's was also injury-affected. Also, don't forget that he cost us a first round draft pick.
First round pick or not he has given us bugger all over the 12 months and ultimately has only shown glimpses in his 16 games. We can only keep these sort of guys on the list for so long before we have to cut our losses. Kieran Harper for example.
Harps played 40 games between 2010 and 2015. Was cut after 2 and a half injury prone seasons. He was a 2nd round pick in a very solid draft.
Garner has played 16 games in 4 seasons. If he doesn't have an impact this year due to injury or from then he should be demoted to the rookie list imo.
I love the way Garns goes about it, and think he is a huge potential but how long do you wait for a half forward that can't find the footy more than 15 times per game?