Haven't read back through the post-game comments in this thread yet, but by page 26 it all seems terribly civil for a Wales-England thread so well done there guys.
I just dropped in to talk about the Wales try. I've been re-watching it this morning, although yesterday as a drunk emotionally-charged Englishman it made me shout angrily at the TV, this morning as a sober backs move geek it's actually giving me a lot of pleasure. If you'll forgive me a bit of geekery here, I had a little look at exactly how it worked - a deceptively simple move, with lots of moving parts and a lot of things needing to be timed and executed right to open up that gap for Liam Williams. Watch from 0:58 here:
https://youtu.be/90_jUX5CP0I?t=58
All the write-ups talk about the dummy run of Scott Williams to hold Farrell, but none mention the dummy runs of Biggar and Davies to JJ's outside which take him wide and open the hole between OF and JJ. This is key.
Fist important thing, Wales controlled the wheel of the scrum to take the back row as far as possible out the equation. Also Youngs has chosen to follow the ball and try and harry the pass from the base, as soon as he is unsuccessful he is out the game and England are a defender down.
8 plays 9 and 9 plays 10. This is important because it frees up an extra man (Biggar) to send wide and distract JJ.
RW (9) runs at GF (10). SW (12) runs a crash line, meaning OF (12) is has to turn in. Once he's turned in, he is unable to cover his outside.
Meanwhile DB (10) and JD (13) run towards JJ's outside. JJ thinks they are setting up a 3-on-2 against him and ED (11) so has no option but to turn out. Timing is important, if they go too early JJ has time to change his mind and get back in to fill the hole. As it is, he turns his hips out and is unable to cover his inside.
The rest as they say is history. Between OF (turned in) and JJ (turned out) there is a gaping hole no-one is covering. OF and JJ don't know it's there because they have been distracted by dummy runners. Wales know it's there because they orchestrated it to be there. LW (11) delays his run so no-one sees him coming, JN (14) is still on the blind side covering a blind back row move. No first line defence, no cover defence, easy score.
From an England perspective - how could they have defended it better? First and foremost, a steady scrum which doesn't allow Wales to nullify their back row. Arguably Clifford could have got of quicker, but he was up against it given the wheel (NB, as a rule of thumb when watching replays of backs moves, I find it is always worth watching the openside flanker from a scrum or the man at the back of the lineout. These are usually key to all the defence further wide)
Youngs could have left the 8 alone and lined up open, either as an extra man in defence or sweeping. Easy to say in retrospect, but there are advantages to the option he chose, if he'd tackled Moriarty or messed up his pass he could have stopped the move at source.
JJ maybe shouldn't have bought the dummy, but again that's easy to say in retrospect, if he'd bitten in and Wales had gone wide there was a 4-on-2 in space and probably only Cuthbert could have ****ed it up.
Nowell should probably have been quicker to cover in my opinion, yes he had to start blind in case of a back row move, but once the scrum has turned the other way, he should have left that to the 6 and 8 (who were the right side) and looked to sweep behind expecting Wales to run open. That is probably my one real criticism of England's defence, however again it is easier to see with hindsight.
Really the only way to reliably stop it would have been to see LW coming and commit to hitting him. Either JJ or OF might have done but the bottom line is the move was designed to stop those 2 seeing LW coming, it was executed perfectly so they didn't and I wouldn't blame either of them too much.
That's my take on it, interested in any other thoughts.