You get a Henderson like swingman to strengthen the spine. Not necessarily the best available, but easily attainable IMO up to pick 25-30.
I only mention someone like Glass-McCasker for that reason. Blanketed Schache in the champs, has good athleticism and contested marking.
From my brief armchair youtube viewing, I'd see him as a Will Schofield/Dusty Fletcher type. Not necessarily the #1 defender but certainly good support for Weitering.
It depends on what SOS wants to achieve this draft - if it is to fix our midfield/small forward situation then we look for a tall next year.