Do you mean what changed from last season or what changed from earlier this season?
From last season nothing at all changed we got good results then too.
If you're talking about the reactions to our games earlier this season, all that happened to get us back in form was just giving the coach and players more time to gel, get fit, and get in form. The panic earlier on seemed to be a major and premature overreaction.
I think that falls into the coaching aspect and figuring out in time who is currently the best option. Btw, shoutout Terzic his resume with Dortmund is already strong and it will only get stronger as he grows.