Opportunties drying up for 49ers assistants

The San Francisco 49ers' postseason success may be costing their assistant coaches a chance for upward mobility again.

There are now only two of the original seven head-coaching jobs open in the league -- Minnesota and Cleveland.

49ers offensive coordinator Greg Roman and defensive line coach Jim Tomsula interviewed for the Vikings opening Saturday. No 49ers coaches have yet been connected to the Browns' opening.

The Vikings have begun the second round of interviews. A source close to Tomsula said he enjoyed the meeting with the Vikings, but a second interview has not been set up thus far.

The 49ers are preparing to play Seattle in the NFC title game Sunday. If they go to the Super Bowl, it would decrease chances of their assistants getting a job because the Vikings and Browns will likely want to move quickly. The same issue occurred last year when the 49ers played in the Super Bowl.

In other 49ers notes:

A look at the 49ers-Seahawks' West Coast ... defense.

In an Insider piece, Mike Sando thinks receiver Anquan Boldin and safety Donte Whitner are free agents who should be re-signed.