Only my opinion, but there needs to be a " ground zero " for the way the rules are enforced.
If the F.A. told the clubs from the start of a season in the near future, that the rules on swearing at refs, diving, feigning injury etc were going to be enforced to the letter of the law and that the refs would receive 100% backing from them, it`d soon stop.
The introduction of sin bin, similar to rugby, would help no end too, for things like mouthing off and time wasting.
They won`t though, as the players / clubs are too powerful and you`ve got pricks like Clattenburg, who`d use the sanctions, to put the spotlight on himself.