San Francisco 49ers general manager Trent Baalke said he hoped to have the team's next head coach hired within "seven to 10 days" in the wake of the team and Jim Harbaugh parting ways.

That was Dec. 29.

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Since then, the 49ers are known to have interviewed eight candidates, with the purported clubhouse leader at the onset of this process -- defensive line coach Jim Tomsula -- yet to get the formal sitdown. Still, Tomsula is the best known to Baalke and CEO Jed York, having worked for the 49ers for the past eight years, including one game as interim coach when Mike Singletary was fired in 2010.

Is it a concern that the 49ers have yet to make a hire, even if they might have interest in a college coach?

Perhaps, though none of the other five teams with vacancies -- the Atlanta Falcons, Buffalo Bills, Chicago Bears, New York Jets, Oakland Raiders -- have made a hire yet, either.

Then there is this: Three of the prospective candidates are still in the playoffs -- Seattle Seahawks defensive coordinator Dan Quinn, Denver Broncos offensive coordinator Adam Gase, and New England Patriots offensive coordinator Josh McDaniels.

Following are potential candidates linked to the 49ers since the team and Harbaugh parted ways Dec. 28:

Seattle Seahawks defensive coordinator Dan Quinn (interviewed Dec. 30)

49ers defensive coordinator Vic Fangio (interviewed Dec. 30)

Denver Broncos offensive coordinator Adam Gase (interviewed Jan. 2)

Former Los Angeles Raiders/Denver Broncos/Washington coach/49ers offensive coordinator Mike Shanahan (interviewed Jan. 3)

New England Patriots offensive coordinator Josh McDaniels (interviewed Jan. 3)

Former New York Jets coach Rex Ryan (interviewed Jan. 4)

Detroit Lions defensive coordinator Teryl Austin (interviewed Jan. 8)

Arizona Cardinals defensive coordinator Todd Bowles (interviewed Jan. 9)

49ers defensive line coach Jim Tomsula

Cleveland Browns offensive coordinator Kyle Shanahan

UCLA coach Jim Mora

Baltimore Ravens offensive coordinator Gary Kubiak