I think there was about 4 players in the wrong for that goal. Blackett should have defended the space and not the man in possession but maybe he thought Smalling was covering Vardy, I think Blind would have got to De Laet or at least put him off coming in field. Smalling is in no man's land, I don't understand why he's that high up regardless of score, when the ball is on the other side of the pitch there's no reason for him to be that high, did he bring the ball out of defence before that? Rojo is too high. Blind is too high.
Poor game management and poor defending as a team which created problems individually.
What's also notable (not with this goal) is after our 2nd goal we conceded just a minute later and after our 3rd we conceded a penalty 5 mins later. A result of chasing more goals when we don't need to, which is poor game management and I think that's down to the players not understanding the philosophy yet. We don't yet have the patience to play 'keep ball', we want to score more instead of controlling the game.