With former Newcastle managing director Amanda Staveley at the helm of a Middle Eastern group looking to invest in Spurs, attention has now turned to Howe's situation.
Should progress under Postecoglou begin to stall, if Staveley's group is in place, a move for Howe is expected.
Staveley is a big fan of Howe and would push for him to succeed the Australian should a change be needed.
Howe has also been linked with the England post, though the cost to buy him out of his Newcastle contract has turned off the FA.