The Warriors targeted the Broncos right-side defence and continually made inroads through left-centre Solomone Kata who finished with two tries and narrowly missed a third, while left-edge second-rower Isaiah Papali'i also came within centimetres of scoring just before halftime.
Kearney revealed the side had worked hard to expand their attacking options after relying heavily on the likes of Johnson, injured second-rower Tohu Harris, and the competition's second best try-scorer, David Fusitu'a, to conjure points down their right side.
"Because we had a fair bit of joy down our right side early on in the season, we've worked pretty hard on our left-edge attack over the last month," he said.
"Even against the Sharks, Isaiah put Sol in the corner for a try and they were pretty good that night.
"It's just about working out where we can be better and we've got some pretty good strike over the other side too with Fusitu'a so they had a good run of it over there, but the left edge has been good in the last few games."
With Kiwi test wing Ken Maumalo hoping to return from a knee injury for next Sunday's clash against Melbourne at Mt Smart Stadium, Kearney may have to deal with a welcome selection headache in the outside backs.
"I was always intending to play Gerard at right centre, it was just where Peta was going to fit into the equation," he said.
"We'll see how that pans out through the course of the week."
Kearney was also pleased with the contribution of hooker Issac Luke and felt both he and Hiku's below-par form against the Penrith Panthers was partly a result of the two Kiwi internationals having to play several games in a short time frame, following the grueling Denver test.
"I've been impressed with [Luke] all year," he said.
"Those guys that had some rep duty were a bit flat last week. They got back from Denver and then played the Friday night against the Sharks with the momentum and energy that they had, but often it hits you a week later.
"Both those guys were flat last week against the Panthers, but Bully came out today and performed really well."
Luke crossed for the Warriors' third try just before halftime and was a constant handful out of dummy half, with Kearney acknowledging the club remains in talks to re-sign him beyond this season.
"That's something we're working through with him at the moment so we'll just see how it all pans out," he said.
