Miller was clearly a great all-rounder but, realistically, with the bat alone it's hard to see a way for him to get into an all-time convict middle order past the likes of both Chappells, Border, Ponting, both Waughs, Harvey and Bradman; arguably a whole host of others from recent times (Martyn, Langer, Boon, Jones among them); and a galaxy of pre-War stars (including Hill, Jackson, McCabe). Bearing in mind also that you can have at most 4 middle-order bats given that Gilchrist would (for most people's money) bat at 7.