"Each individual has to have a plan in place for themselves so that they each get up and perform."
Playing the Chiefs away isn't easy for any team, but the Blues might feel they have a slight advantage playing at Yarrow Stadium, rather than Waikato Stadium. It's the first time the Chiefs have played there under their new arrangement with the Taranaki Rugby Union and there will be intrigue as to how they cope.
Watch: Rugby Highlights: Blues 44 Reds 14
With the New Zealand conference so tight - five points separate the top-ranked Chiefs from the bottom-ranked Blues - every inter-conference match is becoming crucial. Injuries to Kirwan's midfield threaten to stall momentum, but George Moala impressed against the Reds and is an able replacement for Jackson Willison, who tore a hamstring.
With Francis Saili also facing a lengthy time on the sidelines with an ankle problem, Kirwan needs at least one replacement back, and will look to the Blues development team for reinforcements. Charles Piutau, who played the final minutes of Friday's match at centre, would not be a candidate for the No13 jersey, at least in the short term, Kirwan said.
"We considered it, for sure, we're still looking at that, but he's just going too well at fullback. I think the back three [Piutau, Frank Halai and Lolagi Visinia] are really starting to show some stuff."