Red-hot fullback Tuivasa-Sheck is pointing to last month's embarrassing 36-12 loss to the Gold Coast Titans as the wake-up he and his team needed.
The seventh-placed Kiwi club have since outplayed St George Illawarra and Newcastle to all-but book a finals berth.
At the forefront has been Tuivasa-Sheck, returning the football in devastating fashion.
Every defender beaten and metre chewed up is based on a more narrowed approach, he says, with the 25-year-old now realising he had spent too much energy on what he thought a captain should be doing.