Harry Redknapp had a short stint in charge of the Jordan national team a year ago and was also made Derby's football advisor for Darren Wassell's spell as interim manager.
"I think I have served my time and this is something I have always wanted to do".
And despite Boro tumbling into the relegation zone last week, their 11 match winless run in the league and their chronic lack of goals this year, the 51-year-old believes he's the man to halt the alarming slump.
When United's third goal went in, a hapless slip by Víctor Valdés and a walk-in finish for Antonio Valencia, Mourinho had seen enough, wheeling towards the dressing room without nicety or acknowledgment. "I couldn't be more proud of the players, the fighting spirit they showed, and the crowd was top-class".
Boro owner Steve Gibson wants Agnew to take the reins until the end of the season and if he can manage a positive result against Manchester United tomorrow then he may well find himself in pole position for the permanent job.
Agnew said it was "a relief" to see the team end their Premier League goal drought.
United are in sixth place in the Premier League with 49 points, six points behind fourth-place Liverpool and the coveted Champions League places. "I don't think it's amusing that some of our players have played 11 matches in six weeks".
Speaking before the game, Gibson had hinted Agnew could be Karanka's long-term successor as manager.
Gibson, who has special advisor Peter Kenyon's contacts to draw upon, has turned to experience in the past, drafting in former England boss Terry Venables to work alongside Bryan Robson in December 2000, although the circumstances this time around are very different.
"There's more to him than people know and a bit more steel".
"I've known him a long, long time and he's a smashing lad". I think he's relieved. "He achieved something very hard". "He's a very good coach and a very good No.2. He deserves a good future in the game".