Klint Kubiak has a second interview with Seahawks on Jan. 17th [Kubiak is in the driver seat for Seahawks OC job per Mike Garafolo]
The saints can say no to the Seahawks and keep Kubiak until a new head coach is hired, but that does not look good for New Orleans.
I think Kubiak brought a very capable team of coaches to work around him, that is quiet an asset to have.
If the Saints are chasing a defensive coach or special teams coach, I think they will quietly let Kubiak know.
Based on the information he has, Kubiak may decide if he wants to have a position elsewhere.