"It's frustrating when you don't win games, not just for the fans but for the players and the manager too," Cahill told The Bolton News.
"We can only do exactly what we did at Hull (1-0 victory on Saturday). It shows belief and that the staff, the management and the players are all together.
"You've never heard the players moaning about anything - we just leave that to the public or whoever else wants to.
"None of us can complain about anything. So two wins and two clean sheets show our belief in the manager, who I am sure will be happy."