Jewell's Ram bid.
Jewell, who left his job as Wigan manager after keeping them up on the final day of last season, was unveiled this morning as Billy Davies' replacement and his first task is to get the Rams off the bottom of the Premier League.
But despite the side's perilous situation, Jewell insists a first-time return to the Coca-Cola Championship is not a foregone conclusion.
Asked if he could keep the side up this season, he said: "Absolutely. If I don't believe it, if the players don't believe it, if the fans don't believe it we have no chance.
"It's going to be very difficult, but I'm not here to wave the white flag. We're not adrift."
Jewell has signed a three-and-a-half-year deal at Pride Park and insists although the appointment has been a speedy one, he is ready to dig in for a long haul with the club following six months out of the game.
"I've taken time out of football to reflect on how I can get better. That time has not just been spent playing golf, I've done a lot of travelling and watched a lot of football," he added.
"We're in a struggling situation but all is not lost and I'm here for the long term to try and get the club strong and upward and in the right direction."