Considering they had already lost Brad Weber for the season, the Chiefs were facing something of an injury crisis at the halfback position. But, clearly unconcerned, Rennie has opted against naming a specialist as cover on the bench, leaving Cruden as the emergency option should Taumateine fail to make it through 80 minutes.
In the forwards, co-captain Sam Cane shifts to No 8 as Michael Leitch enjoys the week off, with Mitch Karpik earning his second start of the season at openside flanker and Tom Sanders slotting in at blindside.
With Brodie Retallick also resting and replaced by Taleni Seu, Bird will for the first time have a new locking partner. And, in an all-new front row, Nepo Laulala returns from concussion after missing the trip to South Africa and Australia.
Chiefs team to play Sunwolves in Hamilton on Saturday night:
Damian McKenzie, Solomon Alaimalo, Anton Lienert-Brown, Stephen Donald, Sam McNicol, Aaron Cruden, Jonathan Taumateine, Sam Cane, Mitchell Karpik, Tom Sanders, Taleni Seu, Dominic Bird, Nepo Laulala, Hika Elliot, Kane Hames.
Reserves: Brayden Mitchell, Aidan Ross, Sefo Kautai, Mitchell Brown, Liam Messam, Alex Nankivell, Shaun Stevenson, James Lowe.