... the problem is that it's not being used consistently. England should have had at least one penalty for 'hugging' in their first match.

I'll agree with that! Are they monitoring constantly then for corners and free kicks? There were some obvious elbow and wrestling moves going on in England's last game. More than I can remember at any World Cup.

It looked as if the managers spoke at the start of the second half of the England - Panama game. Perhaps he was letting Southgate know he'd told the players to quit messing about and play some football? :)