100% agree with the Galvin issue, it is glaringly obvious that his cross field running and poor decision making is affecting the team; however, that is something that anyone can put a finger on. It is the drop off in line speed, the soft middle resulting from a lack of inside pressure etc.
As an example; on the Bud Sullivan break that led to the try on the weekend the A defender was Api. The marker responsible for putting inside pressure on the receiver was Luai. If the system was working Sullivan would have no reason to come back in behind the ruck because of the inside pressure that was following, in this case Twal and May. As the play was heading towards the wing Api had Sulivan on his outside shoulder and heading that way, Luai was called out of the play by the referee and Sam F ran into him, that was enough for Sullivan to step off his right foot. Twal and May were not pushing across, instead just looking on. Had they been following the play across this gap would have been plugged and the play snuffed out there.
Take the get out of the in goal and the try on the opposite side of the field on the last by Melbourne and the exploitation of the middle in broken play by Saints and you start to see the pattern. The line speed droping right off, inside pressure not being exerted and the scramble falling away are signs of something bigger: tiredness (it was early days against Melboune for the try on the last) due to the grind, overtraining or attitude.
If we could execute the defensive structure well for 8 games - what has caused us to fall off the cliff in the last three? Galvin running sideways affects our ability to put points on the board and him/Seyfarth being targetting in defence has provided plenty of post contact meters for the oppostion - but the tries are being leaked through what was a pretty solid middle and the ability to cover and recover from any defensive errors.
Where has that gone and why?