Clark said: "I feel awful when I have to leave some of these lads out of the starting XI, or even sometimes the 18 - it hurts me almost as much as it hurts them.
"I have a great bond with the group. They will run through a brick wall for me and I will do the same for them."
Clark added: "I have a great relationship with them. I told them a couple of weeks ago that the most important people in my life are my wife, three children and the rest of my family.
"After them it's the players - that's how highly I think of them. I brought most of them to the club, but the ones I kept here have been brilliant too."