Swans won a flag without a traditional spine.
We maybe only have Newton as a KPP, can't count on Neitz or White, Garland might come good as CHB.
I think to get a good spine we have to do a full rebuild with three years at th bottom plus priority picks and get them all in that three year period but there are no garuantees with KPP you would almost need to get two for each position to make sure you got a good spine.