Without offering my selections, I would like to look at our (good) problem another way, as a "Devil's Advocate" so to speak.
It's agreed that 1 and 7 are locked in with Garrick and Walker first choice. In relation to Walker, he is not the best read in defence and often in the past has been a turnstile.
Accordingly, it is necessary to have a reasonably strong defender by his side, apart from the edge forwards. Out of Suli, Elliott and Parker, Suli drops out on that score, despite having great potential as he matures.
Parker has had the tendancy of running up out of the line, with good results lately, however he has previously left big holes when he got it wrong.
Elliott has done a good job at 1; his potential as a centre is unknown.
Old friend Jorge on the wing! Love him and his 110% effort, his metres and post contact metres, not to mention his current hair style. But boy, is he slow compared to most wingers going around today!
Cust excited everyone this week, however it is only one game. I have watched him a few times in lower grades when he got a bit over confident and his decision making failed him. Still it is better to temper a good player down, rather than have to build him up.
Elegy has proven to be hot and cold. His last few games may keep him in 6, but he has to keep his head on.
Lastly, Croker has shown promise both this year and last. Downside - could still be injury prone?
Somewhere amongst these players we have the potential of a really great backline. Only Des can choose and develop them into a Grand Final winning combination.