In a not at all naked attempt to divert conversation away from a never ending tangent on whether it's ok to hit girls, I'm going to throw out a theory and suggestion...
Tom Youngs has the best lineout percentage in the Premiership this season, so is clearly capable of throwing, but has regularly gang agley for England.
Disliking Harmony has been pretty rock solid for England until the last 6N, at which point the f'ck up fairy visited him. Why then? Most people saw our lineout go wrong and simply blamed Hartley, but I'm not sure that's fair. If a unit is working, then you change personnel and all of a sudden it isn't, do you blame the guys who were part of the working unit first? Probably not. Every single one of Hartley's primary lineout targets changed that tournament, that's got to throw a guy off his stride a little.
If you accept stability and working with the same guys is an important part of a lineout, then maybe it starts becoming apparent why Hartley's been very consistent for England and why Youngs hasn't. You have to go back to 2012 and the South Africa tour to find a game where Hartley didn't have both Lawes and Wood to aim at - and in that game, he only got 80pc of his throws. Maybe coincidence; he got 100pc in the first game on that tour, 82.4pc on the second (incidentally, Spies got 4 of the 5 steals, not sure whether that points at overthrows; also Hartley got sinbinned in the third game, while wearing the captain's armband, and I wish I could remember why).
My theory just got blown slightly out of the water by finding out Youngs has only started one game for England without Parling - Australia 2013. But that was a 76.9pc performance; and, in fairness, 4 of his 9 international starts with Parling had a throwing percentage of 90%+; three of 80%+ and only two dipping below that. Incidentally, Youngs' two really crap games, not much of the opposition being credit with steals on ESPN (mild point of interest).
Anyway, to fulfill my ponderous journey towards a by now increasingly obvious point; given that familiarity with one's jumpers and lineout caller are clearly of some import for a hooker - do we hand Geoff Parling a starting slot?