Newcastle have appointed Dennis Wise in an as yet unspecified role.
Wise, 41, will join the club on Tuesday and will work under Kevin Keegan, who returned to St James Park earlier this month.
A club statement said from Leeds: “We have agreed a compensation package with Newcastle for the services of Dennis Wise.
“He will part with the club on Tuesday after completing preparations for the game at Southend on Tuesday.
“Newcastle had approached us for permission to speak with Dennis on Friday and since then things have happened very quickly.
“We will always be grateful to Dennis for the way he has turned things around at the club on the playing side and he goes with our best wishes for the future.
“We are not prepared to comment on the inevitable speculation that will now follow about who will replace Dennis. That is not the way we do our business at this club.”
Keegan himself would not be drawn on the subject of Wise at a Newcastle media briefing on Monday.
“Obviously, there are going to be some moves at this club, but I think the chairman (Chris Mort) has really got to come out and say what that’s all about later this week.”