Ireland have never got past a quarter final and lost at that stage to New Zealand last weekend
The All Blacks play Argentina in the first of the semi finals in Paris tonight - kick off is at 8pm Irish time.
O'Gara believes it's time to recalibrate:

Niall Scannell Will Retire From Munster Rugby At The End Of The Season
Old Park Star has won the Supreme Novices' Hurdle
Tuesday Morning Sports Update
Ireland And England Will Meet Next February To Kick Off 2027 Six Nations
Tolka Park Stages The Dublin Derby Between Shelbourne And Shamrock Rovers
Conor McGregor Not Included In White House Fight In June
Ireland's Men And Women Hockey Teams Book Their Spot At This Year's World Cup
Ireland To Train Collectively Today Ahead Of Next Saturday's Six Nations Clash