Winger Will Jordan has been elevated from the reserves, making way for Roger Tuivasa-Sheck who is in line to make his test debut from the bench.
"It's tough having a loss but the tough weeks are often the most exciting," said Foster.
"A series decider against a high-quality side is a great occasion for our growth as a team."
The All Blacks have played Ireland in Wellington just three times - twice at Athletic Park (1976, 1992) and once at Sky Stadium (2008).
All Blacks team to face Ireland:
George Bower (13)
Codie Taylor (68)
Nepo Laulala (40)
Brodie Retallick (94)
Samuel Whitelock (133)
Scott Barrett (50)
Sam Cane © (79)
Ardie Savea (61)
Aaron Smith (104)
Beauden Barrett (103)
Sevu Reece (19)
David Havili (15)
Rieko Ioane (49)
Will Jordan (14)
Jordie Barrett (38)
Reserves:
Dane Coles (80)
Aidan Ross (1)
Ofa Tu'ungafasi (46)
Akira Ioane (13)
Dalton Papalii (14)
Folau Fakatava (1)
Richie Mo'unga (33)
Roger Tuivasa-Sheck*
*debut