The Saints made it public that they were going to interview Kubiak and Griese, so it seems clear that they are waiting until after the conference championship games. It would actually be strange if they’d make a hire before then.
I think one of these guys is the primary target for the Saints OC. I would expect a decision to be announced before the end of next week at the latest. Typically, the senior bowl is the unofficial gathering spot for all position coaches looking for a job and with every NFL team having their scouting departments there those contacts are made, interviews are done, and positon coaches are hired to fill vacancies on staffs. The next 10 days should have a lot of activity take place here and elsewhere.