Injury, team standards, game plans - they are all wheeled out as reasons for players' erratic contributions.
Tonight those players are under a bigger spotlight. The selectors have decided they are the best group for test rugby and given them the best tuition.
They may not have played together this season but enough are with Super 15 teammates or regular test comrades.
And while there are the usual noises about the dangers from France and the potential within their squad, the tourists are facing more obstacles.
They had a torrid Six Nations, have travelled from the other side of the world, face unfamiliar conditions, are at the tail end of an arduous season and are down on manpower.
Their task is to face the side rated the best in the world.
That is a tough itinerary, unlike the lack of bite the Lions have so far encountered on their tour.
Observers like former Lion Austin Healy have bemoaned the weak opposition and, comically, warned about the dangers of stories concocted in the Australian media.
Mind you, this is from a bloke who rates playing for England and then in a World Cup final as great pinnacles in the game.
Each to their own standards.