The Swedish defender told the Birmingham Mail: "He is unbeaten since he's arrived and has done a brilliant job so far.
"All of the players are on board with him and taking in his ideas.
"He's only had five or so weeks yet we are already seeing the results from the changes he's made.
"If we can just stay up this year and have a whole pre-season with this gaffer then we'll have some very promising times ahead.
"We had struggled with organisation, the shape of the team and doing our jobs as a unit, especially the defence. That's what's been highlighted the most since he came.
"We've been working 11 against 11, using the big pitch, working on game situations. We are more solid than we were."