Rangers beat Queen of the South 2-1 last weekend in the first leg of their play-off clash, and are now preparing for the second leg at Ibrox this weekend.
The game will go some way to defining McCall's reign as Rangers boss, with the 50-year-old only on a contract until this summer - meaning a win would go some way to helping him earn an extended stay in Glasgow.
Ahead of that game, McCall has told The Sun that he has even had a meeting with former Rangers boss Advocaat this week, no doubt taking advice from the experienced Dutchman.
"Dick Advocaat was up the other day and came to speak to me in my office," said McCall. "I don’t know if he was measuring up the curtains and the carpets but it was nice to see him. We had a good chat," he added.
Advocaat, 67, managed Rangers for three-and-a-half years from July 1998 to December 2001, winning 67.5% of his games - as well as clinching five trophies during his time at Ibrox, including two league titles.
Advocaat remains a popular figure at Ibrox after his success at the club, and whilst a return looks unlikely, fans will be hoping that he can achieve survival with Sunderland - and he will be hoping that Rangers can achieve promotion back to the Scottish Premiership this season.