With all five names currently in work, the compensation fee United would have to pay could also prove decisive.
The Glazers are keen to avoid making similar mistakes to previous appointments, deeming an in-depth strategy necessary.
But if they’re considering compensation, wage demands and transfer plans, there may be doubts whether they are solely searching for the best fit, but instead the best value.
United will be aiming to land their preferred option in time to start work at the helm on July 1, especially if a candidate becomes available before the end of the season.