Derek McInnes is right under the nose of Rangers but they have so far chosen to ignore him.
Former Light Blues skipper McCulloch still sees the Dons boss as the perfect man to succeed Pedro Caixinha.
The 39-year-old thought that two weeks ago and nothing has changed his mind as the search for a new boss approaches week five.
What has altered is Pittodrie chairman Stewart Milne claiming McInnes had assured him he wouldn’t be leaving the north east for the club where he spent five years as a player.
And to add another twist to the saga the two clubs now face a double header with back-to-back league games in the space of five days.
McCulloch knows his old side are vulnerable after successive defeats to Hamilton and Dundee under interim boss Graeme Murty and McInnes will be looking to take full advantage.
The ex-Kilmarnock boss said: “Derek will sense blood in the Rangers ranks.
“Two bad results means it’s not good viewing. For a Rangers or Celtic player two bad passes makes a crisis!
“On form Aberdeen are favourites going into this game with Rangers losing their last two games. Rangers have the bigger budget, which some people will see them as favourites, but it will be an interesting game.
“Derek is a born winner…