"To complete the turnaround" means successfully finishing or accomplishing a major change or improvement in a situation, usually from a negative state to a positive one. Full definition
However, he was made to rue those missed opportunities, with Pogba scoring a brace and Chris Smalling completing the turnaround in an enthralling second half. (caughtoffside.com)
Marouane Fellaini completed the turnaround at Old Trafford, after his header put Manchester United 2 - 1 ahead during the derby against Manchester City. (caughtoffside.com)
Over the following months, the families who were fostering Rupert's housemates reported that the dogs were making complete turnarounds, bringing joy to Deanna and her team. (petsmartcharities.org)