I'm obviously in the minority here but I really don't give a toss about trainers on the field.
If a 53 year old Alfie or 43 year old Stacey Jones "running water" plays much of a part in the game I think we're ok.
If you need a trainer out there holding their hand your team is in bad shape and my 2 examples above show it doesn't make much difference. Apart from getting sconed in the GF I don't recall any mentions of the Rooster's trainer. Don't even know who Storm, Eels, Manly, or Raiders trainers are (don't even know Roosters bloke's name) so they can't be too prominent but those sides did better.
In short: unless the merkin gets in the road they have bugger all affect on the game.
Disagree. In my opinion this is where "give them an inch and they take a mile" comes to mind. Easier to keep them off the field entirely unless there is a break in play etc.