Although there really isnt any space capacity (if there was I would assume M3 and the Newbridge-GCD service would be getting it today) for such an urgent need, if there was one I would imagine it would be the Commuter Trains in the GDA/Cork area which will get them as the BE services there are very heavy.
However, the nightmare scenario is that of IE workers not passing a BE picket in places where there are co-location.
If those workers are suspended then we will be heading to an all out CIE strike.
At that point (indeed right now) the minister has to get off his hands and get involved.
We are the passengers