Shane Matthews was pulled a rib cage muscle Sunday, which gave Miller an opportunity for the promotion, However, Miller will remain the starter even when Matthews returns.
"We'll have to reevaluate Shane's injury when he comes back," Jauron said. "We don't know how long he'll be out. He'll be reevaluated again at the end of this week, but Jimmy is our starting quarterback and Shane when he comes back healthy will be our backup. That's the way it will be right now."
Miller has been in position before in both 1999 and 2000. He went from the Bears third quarterback to the starter two years ago and had a 424-yards passing against the Vikings, but his season was cut short because of a league suspension for a banned substance. Last year he became the Bears starter in week 9 after Cade McNown went down with an injury. He led a Bears victory against the Colts. The following week he suffered a season ending Achilles heal injury in Buffalo.
"You can't look back on those things," Miller said. "Those are all character builders that I've learned from over the years. I know I'm a lot better quarterback than I was eight years ago. I've learned a lot along the way. I just want to continue to improve. To play consistent at this level for a quarterback (is) not making dumb decisions. I want to go out and make good decisions. If I do that and everybody else does their jobs, we're going to be a damn good offensive football team.
Miller worked hard to be ready for training camp and was going to be part of a three-way quarterback competition, but pulled a hamstring muscle within the first week of practice. Miller never had a chance to win the starting job and Matthews became the starter.
"Well, this is really the first time (Miller has had a chance to start) due to injury in training camp," Jauron said. "We went into the camp with really an open quarterback position and things just worked out the way they worked out. Jimmy got hurt early and missed a good deal of time. Then he got his opportunity yesterday and he really took advantage of it, but again as we've said many times Jim is really a good teammate. I mean he works hard where ever he is in the scheme of things he works at it and he tries to work his way back up to the top and when he gets it he'll try to hold that thing and I'm confident (he will)."
"It's satisfying," Miller said. "I've worked hard. I'm accomplishing the individual personal goals that I've set for myself. I've still got more to do, and we've got more to do as a football team. Granted, you always want to be the starter. It took me longer than I thought to get it, but I'll just keep on trying to improve."
Miller is more of a deep threat than Matthews because of his arm strength. The question on Miller the last couple of years is can he stay healthy? At this point Matthews will not be back for the Falcons game, so that leaves Danny Wuerffel as the backup QB. Jauron said the team is not looking for another quarterback, yet.
The bye week will allow both Miller and Wuerffel to get more snaps.