McDermott headed away from Wearside knowing he is in the thick of a survival battle.
He said: "Do I fear for my future? I don't have fear about it. I have been in football for 30-odd years now and I know this club is in a far healthier position than it was a year ago, two years ago when we were starting League One in the face, three years ago.
"Where we are now as a club, we are in a far healthier position, so that's the most important thing for me, the club.
"I am just disappointed with the results. I have been used to winning games over a long period of time and we are not winning games."