Not only did Frazier stabilize what had become a toxic situation, but the Vikings also have defeated Washington (17-13) and Buffalo (38-14) to improve to 5-7.
Now comes the tough part.
While the Redskins and Bills are a combined 7-17, the Vikings' next three opponents present a much tougher challenge. Minnesota will play host to the New York Giants (8-4) and Chicago (9-3) over the next two weeks before visiting Philadelphia (8-4) the day after Christmas.
It remains unclear whether quarterback Brett Favre will be available as he battles a sprained right shoulder that could end his starting streak at 297 consecutive regular-season games.
This stretch could go a long way toward determining if Frazier will get the interim label removed from his title.
Frazier certainly has to be considered a serious candidate given how he has handled himself and his team. If the Vikings can be competitive in this stretch, it might be enough for owner Zygi Wilf.
The Vikings' dilemma is going to be that on Jan. 3, a day after the Vikings finish the regular season at Detroit, Frazier will be a coaching free agent.
He has interviewed for seven coaching jobs in recent years and certainly could be a hot candidate again this offseason.
Frazier was a finalist for the Denver Broncos job in January 2009 but did not get the position that went to Josh McDaniels. Now with McDaniels having been fired, there is a chance the Broncos could take another run at Frazier and even target him as their choice.
Frazier has been unwilling to talk about the future, choosing instead to only focus on the next game. That has been his approach since he took over and was done in large part to keep his team focused on the task at hand.
Frazier did say last week that there have been no talks with Wilf about 2011 or beyond.
However, a victory this Sunday certainly would not hurt Frazier's cause. Wilf was a lifelong Giants fan before buying the Vikings in 2005, and beating that team always has been a highlight for him.
No matter what happens, it's likely that Wilf will hear very positive feedback about Frazier from players who had grown tired of Childress. Frazier has good people skills, and he has used those to rally the team.
It won't be surprising if that trait helps keep him in the Vikings' head coaching job past this season.
SERIES HISTORY: 22nd regular-season meeting. Vikings lead series, 13-8. The Vikings have won the past four meetings between the teams, including a 44-7 victory on Jan. 3 last season at the Metrodome in the regular-season finale. The Giants are 2-1 against the Vikings in the playoffs, including a 41-0 victory in the 2000 NFC Championship Game.