"I think all teams start out with that goal - you want to win it," Rennie said.
"But once you've won it, anything other than that would be a disappointment."
To prevent that disappointment, the champs must first ensure they avoid straying far from the impossibly-high standards for which they have become known.
"Obviously we're aware of that and we've talked about it, but we've got a pretty determined bunch," Rennie said.
"Everyone's accountable and our leaders do a great job of driving that."
While some leaders did depart after victory over the Brumbies last August - Craig Clarke left for Ireland and Richard Kahui went to Japan - the Chiefs retained plenty of players who added a second title to their collection.
Aaron Cruden, who played all but 26 minutes last season, replaced Clarke as Liam Messam's co-captain, while the young All Blacks core of Brodie Retallick, Sam Cane and Tawera Kerr-Barlow are another year closer to their peak. Then there's the experience added from elsewhere, with former favourite Mils Muliaina once again set to grace Waikato Stadium, and Robbie Fruean, Tom Marshall and Jamie Mackintosh joining the mix.
The new additions have also boosted the Chiefs' already-enviable depth, and strength in numbers is imperative when navigating the powerful New Zealand conference.
The Chiefs will get an early look at their main rivals, travelling to the Crusaders tomorrow to play the team they have conquered in the previous two semifinals.
But Rennie was equally impressed by opponents offshore.
"It's such a tough comp, to have to play all the Kiwi sides twice, with a bit of travel.
"We go to Pretoria and Bloemfontein this year, and a lot of the Aussie sides are looking stronger, too.
"It's a tough comp and you've got to get it right for a long part of the year. So depth is crucial and we've got a fair bit of that."
The new faces offer one more advantage, one which will allay fears that those who have sprayed the champagne twice could be lacking the thirst for a third dousing. Muliaina experienced six unsuccessful seasons with the Chiefs before watching on as his former teammates broke the hoodoo.
"The guys already here understand how hard we've worked to achieve success in the past, then we've got a lot of other fellas who were brought in and are desperate to win a championship," Rennie said.
Whatever blend the Chiefs have concocted at their base near the Ruakura research facility in Hamilton, they appear to have found the formula for Super Rugby success. The rest of the competition would be wise to respect the chemistry. - APNZ