The parent group here doesn’t have much to do with influencing the emerging situation - it’s the current train crew position (including rest day working), traction and route knowledge and what the DfT are prepared to sign off that is driving all this.
If you lose drivers, recruitment has to be signed off, then the new recruits have to join the queue for training, the extent of which has to be signed off, then there is the rest day situation and then there is more COVID to disrupt and slow everything down again.
TPE have put proposals forward to rectify what should never have happened in the first place but the DfT are not signing the industry any blank cheques anymore and it’s crippling any effort to improve matters. Avanti can’t replace the Euston drivers overnight and the DfT isn’t keen to see any more targeted service reductions to match the available resources. So no decisions get made and it all drags on.
If this was purely left up to the operators, they would have put the money in by now to sort out this mess. But you are not allowed to do that anymore. Appalling.