With Sir Jim Ratcliffe and the INEOS group now overseeing football operations, the pressure is on to make a definitive call regarding Carrick's interim tenure.
While Carrick has overseen a remarkable resurgence -winning 10 of his first 15 games and securing a return to the Champions League - the lack of an official permanent appointment is reportedly causing unease.
Rooney has warned that if INEOS doesn't move quickly, United risk losing out on their primary targets to more organised competitors. The United legend has been vocal in his support for his former team-mate, suggesting that Carrick has earned the right to lead the club forward and that a swift announcement is necessary to facilitate summer business.