If his cash-flow problem at the moment means that he has a requirement for cash but doesn't necessarily want to retire and therefore doesn't want the ongoing pension income, he might be able to transfer some or all of the funds into a PRSA, withdraw 25% as a tax-free lump sum and leave the remaining 75% in the PRSA until such time as he actually wants to retire.
However, as GSheehy mentions above, he really does need professional advice on this to establish (a) if he can do it as there are rules governing such transfers which must be investigated in respect of each transferring policy, (b) if it would be in his best interests to do it, by comparison with his alternative options and (c) if a transfer out would cost him by way of penalties, loss of guarantees etc.