"I think there's always been a mission to accomplish on my behalf," Gunn told the Norwich Evening News.
"That is to make sure we're playing Championship football next season, and we've been working along nicely.
"We've given ourselves an opportunity to complete the mission and I'm not sure when it will be completed.
"The starting point is Sheffield Wednesday. We need to make sure that's the only thing we are really focused on when we get back in on Monday."