I don't feel like Wenger made a
tactical error yesterday — his
error was in the first game... but that had
more to do with players then manager on the day.
Put simply, the balance was all wrong, but credit where it's due, they addressed that with the subs / formation change and went on to make up for the
tactical error by scoring 2
more goals.
And when you do look at those goals — as I have, on my
tactical breakdowns, which you can find on the site — you can see why Liverpool have dropped points, and
more often than not it's because of some individual
error you can not account for, such as Lovren missing the ball, Matip leaving a header, Karius not positioning himself well enough, a midfielder not tracking his man properly, or the team of officials being useless in enforcing the laws of the game.