Haven't read through 40 pages as that's probably not good for anyone's mental health but looking at the replay of the 2nd goal...
This has probably been done to death but anyway...
https://imgtc.com/w/mIgctbKPause it at the start just as Lovren misreads the header and we're on the back foot.
Look top of screen where Milner and Son are.
As Milner crosses the halfway line, he has almost a 5 yard head start on Son. Granted Son goes into full sprint mode maybe half a second before JM but still.
Let it play and watch the ground Son makes up, this is early in the game and with his head down at full pelt Milner is beaten maybe five yards after passing our semi-circle.
Not only that but Son being the only clear and present danger in terms of a goal threat barely even gets a nudge.
That's the issue with playing Milner at full back or away from home in a 3 where we have Trent/Gomez pushing on in a high line in our normal attacking set up.
He hasn't got the recovery pace to prevent a counter attack like that.
This isn't an attack on Milner, Lovren's hideous attempt at a clearance is where the problem starts. But imagine that same scenario v Arsenal, Chelsea, Utd etc.
Same outcome, someone like Rashford, Hazard / Sanchez etc also bombs through and beats us in a 1 v 1 chase on goal and puts it away.
Just one of many infuriating issues we saw on the pitch at Wembley.