United beat Watford 2-1 on Saturday to move into fourth in the Premier League table and Jones, who recently signed a new four-and-a-half-year deal, believes the club are heading in the right direction under the Norwegian.
Speaking to Sky Sports, the United defender said: "It's great, the lads are buzzing. He's come in and been a breath of fresh air for us.
"He's put arms around the shoulders of the people that needed it. His man-management skills are terrific and he's definitely what we need going forward.
"We had a poor start and it's been a story of two halves to the season.
"He's come in and done a terrific job, I'm delighted he is here and we can move forward and progress under him.
"We need to knuckle down and play better than we did against Watford and keep improving as a team."