"I've been really comfortable with Cappy and what he brings to the table," Kearney told the New Zealand Herald. "I think it has been fine. He's a smart football coach and has a lot to offer the club so I have been really comfortable with the situation."
At first it was a bit incongruous to see McFadden - who had been in charge for almost three seasons and 67 games - acting as one of the runners on game day, distributing water and advice to the players during the match.
But McFadden, who first came to Mt Smart in November 2012 as an assistant to Matthew Elliott, took his demotion on the chin, and it has been a credit to his professionalism that he has adapted quickly to the new role.
McFadden has also retained the respect of the playing group, which hasn't always happened with departed Warriors coaches in the past.
It remains an unusual situation, but Kearney is confident it is working.
Kearney also indicated that Stacey Jones would be retained, but there is likely to be a change to the coaching structure.
"I'm pretty comfortable with a couple of assistants, rather than three," said Kearney, referring to the prospect of replacing former assistant Steve MacNamara, who left to coach Catalans in June.
"But we are looking at potentially having another coach who is full time who looks after the reserve grade side but is helping the first grade too," added Kearney. "That's potentially the make-up of the coaching staff."
Ricky Henry has been in charge of the Warriors ISP outfit this season - with the team currently sitting in second place in the NSW Cup - but it's not a full time position.