"Mark is part of building the club, from the playing side right through to making this a great place for employees," he told The Sun.
"What we don't do is sit around worrying about what happens if it goes wrong.
"Once we get through the first window, when Mark's impact will be able to advance the future of the football club, things will start to settle down.
"Mark's plans and the way he is running the team are going to build and change and the confidence will start to build.
"We will bring people here who want to see the club move forward and the fans will ideally take to them because they're committed to the club.
"Mark has played and managed at the highest level and knows what success looks like.
"He and I talk about that success all the time and we are not standing there thinking about 'what if'.
"We are thinking about when we become successful and how that'll look."