Many moons ago when I played as a halfback, we were taught to count the numbers, mark up and call for our players to cover when numbers were short. I know things are different these days and the lock position plays in the centre third as an extra prop in defence.
But someone in the Dragons side needs to step up and call for cover when the opposition is stacking our right edge. The fullback and the lock are the most obvious cover however, when a center or winger is caught at marker, there should be an arrangement for the lock or seconrower to cover the right edge.
In my day, the winger always stayed out close to the touchline and the rest would slide towards him when required. So, to me Hunt or Dufty should be calling the numbers on our right edge and De Belin and Dufty should be the first there to make up the numbers. It won't always fix the problem but I'm sure it will do a better job than what is happening now. And for goodness sake, Aitken forget about rushing in so often. This is now so predictable that opposition teams are counting on it.