Liverpool's abject defending from set-pieces at Watford shows why they must splash out £60million on Virgil van Dijk.
There are no leaders in that Liverpool defence. At corners, no one wants to take responsibility and clear the ball.
When you mark zonally, as Liverpool do, you need players to attack the ball. At Vicarage Road they were twice punished for standing like statues at corners.
It was a similar story at Arsenal, who were undone by Leicester at two corners on Friday.