Perhaps in recognition of the importance of victory, Rennie has named a strong side to face what is essentially a Brumbies B team, resting only a trio of All Blacks starters.
Michael Allardice will start on the openside flank in place of Sam Cane, Lachlan Boshier will take the No 7 jersey from Sam Cane and Alex Nankivell will replace Anton Lienert-Brown at centre.
But with Kerr-Barlow, Cruden and Lowe starting alongside the likes of Kane Hames, Nathan Harris, Liam Messam, Charlie Ngatai and Damian McKenzie, Saturday's team still features no shortage of players who wore either the All Black or New Zealand Maori jersey during the recent Lions tour.
Chiefs team to play the Brumbies in Hamilton on Saturday:
15. Damian McKenzie
14. Solomon Alaimalo
13. Alex Nankivell
12. Charlie Ngatai
11. James Lowe
10. Aaron Cruden
9. Tawera Kerr-Barlow
8. Michael Leitch
7. Lachlan Boshier
6. Liam Messam
5. Mitchell Brown
4. Michael Allardice
3. Nepo Laulala
2. Nathan Harris
1. Kane Hames
Reserves: Liam Polwart, Aidan Ross, Atu Moli, Tom Sanders, Mitchell Karpik, Finlay Christie, Stephen Donald, Shaun Stevenson