@Red Bug from the newbies wanted me to post some info he got, so here you go.
Seems like a few people getting worried now but I have been told the following:
Ok so my friend who works at the club has heard this from several people today:
Van Gaal's contract states he must finish third or above this season (instant qualification for CL group stages).
His final year contract states that he must either win the league or CL.
If these conditions are not met then he will be sacked and his contract doesn't have to be paid off in full.
Mourinho knows the terms of Van Gaal's contract and United have been honest with him by stating that they give their manager's the time to honour their contract terms. Basically, Utd don't want Mourinho to look at them as another Chelsea.
It's exactly like when Moyes was in charge. As soon as it became matematically impossible to qualify for the CL he was let go.
Basically, unless we finish third this season - Van Gaal is gone and Mourino will be our new manager for the 2016/17 season. He will also be allowed to bring his own staff, apparently. So that would be the end of Giggs as assistant I think.
Both Giggs and Van Gaal are aware of their target by the way - this is why we have had a slight change of playing style of late. Giggs has been involved with the training sessions a lot more and is worried for his position. Apparently.
This could all be BS - but thought I would share what I have been informed.