David Moyes, who was sacked as head coach by Manchester United in April 2014, believes the club has shown little signs of progress in the five years since.
Moyes replaced Alex Ferguson after the latter retired at the end of the title-winning campaign of 2012-13, but the former Everton boss lasted barely 10 months at Old Trafford as he failed to win a major trophy or secure UEFA Champions League qualification.
United have struggled to mount a serious challenge for the Premier League in the five years since however, with Louis van Gaal and Jose Mourinho both dismissed despite delivering three cup triumphs between them.
Significant money has been spent on the playing squad since Moyes' exit, yet they currently sit 27 points behind league leaders Manchester City with two games left of the 2018-19 season, and are unlikely to finish in the top four.
"I feel that since I took over to where they are just now, I don't think there's an awful lot of difference," Moyes told talkSPORT.
"When I took over it was needing a change and needing a turnaround of players, and that was all going to take time.
"I feel like in the four years or so since I was managing there, it's probably not moved on much more. It's quite similar - they're still saying there needs to be changes and has to be things done.
"That time since I left hasn't been used awfully well."
United's 1-1 draw with Chelsea last Monday (AEST) leaves them three points behind Maurizio Sarri's side, who sit fourth with a much better goal difference.
Ole Gunnar Solskjaer's men must beat Huddersfield Town and Cardiff City and hope for favours elsewhere if they are to end the season in the top four.