To be more specific with the Wigan skulduggery at the ptb, my complaint is when the tackled player regains his feet the Wigan defender wil still have his arms around the tackled players upper body.
The outcome is a poorly executed ptb or even a knock on at the ptb. In the former it slows play down this also after laying on the tackled player . This tactic slows down the quick burrow scoot from the ptb, one of our main attack thrusts.

Not quite sure where people get that Warrington are the worst for moving off the mark from. Both teams were at it a lot last night.

There are times when the tackled player can't regain his feet on the mark because he's left a defender lying in there by winning the collision. On occasions like that, he should be allowed to take a pace forward or to the side to take advantage of a strong carry. The alternative is that you have a slow, scrappy play the ball which leads to a penalty and disrupts the flow of the game.