When asked about coaching changes during the epic press conference with Mike Brown and Marvin Lewis, the Bengals owner simply said we'll move at our own pace. Later on the same day with a smaller group of local reporters, Lewis answered a question about whether the team will hire a new offensive coordinator and the head coach said, "that's kind of private to me."
As far as we know, the Bengals entered the offseason with no assistant coaches under contract -- not completely unheard of, especially with 2011 in jeopardy.
Until the Bengals officially announce the team's coaching staff, we won't necessarily know of the coaching changes. And as Geoff Hobson writes, "that announcement may still be a few weeks in the making."