here we go again.
His positioning (which was one of LS's points) is fine on that. Watch how it transpires, he's constantly adjusting and realigning off the forwards. He's actually working quite hard to get himself into a position that can keep the move alive as the passes keep getting moved on under pressure.
Additionally he gets himself inside shoulder of the Samoan 14 turning him in which actually stops him drifting out onto Brown earlier.
On the technicalities of the pass, it's a one movement pass because if you watch it from the front (below) he actually has very little time on the ball, so he gives and takes in one movement to make sure the move doesn't break down with him taking man and ball. Yes Brown has to adjust but the ball hits him and lets face facts he is very flat for the same reasons Farrell flattens up, he's also on an outside line drifting off the pass.
So for me, no major issues with that pass, (especially if you compare it to the Dagg pass to McCaw in the first game), the ball could have been spun to Brown but lets remember the ball was again wet on Saturday so soft end over pass is a decent option.
Additionally lets remember this is a lad who hasn't played 12 for a while, he's been the main 10 at his club and England for the last 3 years and, yes, he looked lost at times but to expect him to step in at 12 and be world class....... his positioning and short passing game is pretty good and if you watch the game he's running some pretty decent pre-emptive support lines from 12 - first may try a perfect example, he doesn't chase the ball he stays on his line after the pass, gets taken out by a samoan who's tracking Brown.
he's far from perfect but he's not the biggest problem England have, nor are the centers.
*awaits torrent of abuse for defending Farrell*