Doyle backed McFadden but also stressed the need to find a mentor for him, and All Blacks assistant Wayne Smith has even been mentioned as a possibility in that role.
Doyle strongly denied that the club has been making moves behind the scenes to line up a potential replacement in case the Warriors' struggles continue next season, and said the suggestion that 'where there is smoke, there's fire' did not apply in this case.
"No, no. We are not investigating any opportunities for a head coach because we are focused on the one we've got," he said.
"So people can say 'where there's smoke there's fire' but people make stuff up.
"We've said it until we're blue in the face; we know exactly the head the coach we've got next year. We're comfortable with that, we're fine."
Dobbin told the NRL360 hosts, former NRL premiership winner Ben Ikin and journalist Paul Kent, that Kearney "dead batted" the Warriors rumour away. But Kearney told Dobbin, a Queensland-based correspondent, that he was committed to becoming an NRL head coach again.
The ambiguous nature of Dobbin's report was frustrating, and Doyle lamented rugby league's preoccupation with rumour and gossip, while accepting it is "a part of the game".
"How they would take that sort of comment to say that he's then coming to the Warriors and Cappy's not going to see out the offseason, it's just unbelievable," Doyle added.
"It's unfortunate that it is a part of the game. People who are in influential positions on radio and TV make comments, and it's just a comment that a friend of yours might make in the pub. But because they are on radio and TV it doesn't just stop at the pub, it flows through."
McFadden was today asked for comment but replied via text message saying: "I'm not going to comment on rumour."
Doyle was unconcerned what effect the continual speculation might have on McFadden, and said he knew that he had the club's backing going into 2016.
"No, I don't think Andrew's too fussed by these rumours. I talk to him every day and he knows exactly where he sits and he's got no problems whatsoever with it."