"I wouldn't say it's the lowest moment. I think it became pretty glum, if you like, under David Moyes and it was unfortunate. We weren't playing well at the time," Jones told British media.
"There's no point saying we've played some good football this season because ultimately we've lost three games in a row -- but we have in patches. We need to stick together, there's nothing else you can do."
The England international became the latest United player to speak about the atmosphere at the club, after goalkeeper David de Gea dismissed reports of dressing room unrest.
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Louis van Gaal, who is bookmaker William Hill's favourite in the sack race, has come under heavy criticism for his over-emphasis on possession, but Jones believes the Dutchman is the right man to turn around the club's fortunes.
"The manager is doing all he can and is doing a terrific job. It's not even questionable in the dressing room. The lads are absolutely fully focussed on performing well for the manager, the fans, ourselves week-in, week-out," Jones said.
"The players in there aren't hiding behind anyone. We know full well we have to take responsibility. There's no other way. The manager picks the team and the team has got to go out and do its best."
United, who are fifth in the table, travel to take on 11th-placed Stoke City on Saturday.
(Reporting by Nayan Das and Chris Peters in Bengaluru; editing by Sudipto Ganguly)
