It is probably the most daunting managerial job in world football: replacing Sir Alex Ferguson.
The short answer is that he will never be replaced. The 70-year-old will forever be immortalised at Old Trafford, and he even has a statue now outside its entrance...just in case you forget.
A poisoned chalice? An amazing opportunity?
One thing is for certain, United will not be short of applications once the great Scotsman decides enough is enough.
However, despite the high interest that will obviously be shown for the potentially vacant position, one would expect Sir Alex to have a huge say as to who his successor should be.
Here are five contenders for the coveted job.....