I'd still go Morris on Johnson as first choice as he is pure stopper, and Shaggy off the HB line has been leading our possession count (or near enough to it) over the past month.
I'm very conscious of Geelong's ability to play & cover for each other all over the field and I'm don't think we will be able to counter a clogged HF line without Harbrow running off, and Gilbee & Hargrave being the most likely to kick long. If our F50 entries are left to our "second tier" users of the ball (ie Morris, Picken, Cross) we will struggle to put a score on the board. I'd say the same about the Saints, Pies & Crows.