The manager-to-be is keen not to distract his Netherlands squad ahead of Saturday's friendly with Ecuador, while his backroom staff at Old Trafford is still to be determined
The Premier League giants have agreed terms with the 62-year-old but are to postpone confirmation of his appointment to allow Van Gaal to prepare the Netherlands squad ahead of Saturday’s friendly with Ecuador without any distractions.
Van Gaal is still to determine the make-up of his backroom staff, but wants to work with interim boss Ryan Giggs, with Netherlands assistant Patrick Kluivert understood to have decided against moving to England.
Giggs has filled in as player-manager since the April sacking of David Moyes and Van Gaal sees the United legend as a useful asset, along with former goalkeeper Edwin van der Sar, who could return the club in a coaching capacity.
The former Barcelona and Bayern Munich boss is expected to oversee an overhaul of the United squad upon his arrival, with the likes of Rio Ferdinand and Nemanja Vidic already having left and Patrice Evra, who is a target for Juventus, unlikely to extend his Old Trafford career.
Van Gaal has already outlined his summer targets, with Luke Shaw - already the subject of a £27 million bid - joining the likes of Mat Hummels, Kevin Strootman and Edison Cavani on the Dutchman's wishlist.