Former Inter Milan president Massimo Moratti feels Roberto Mancini has reinvigorated the club.
Inter fought back from being 2-0 down to draw 2-2 on Sunday against Lazio.
"I can see improvement in the team and they showed character, while the style of football is back to being enjoyable again," Moratti told Sport Mediaset.
"It required adaptation and changes, but the results are visible. You can certainly see that Mancini is working well and that was clear last night against Lazio.
"It's not that Mazzarri wasn't working well, but now you can clearly see a very different harmony between the players and the club. I think everything is going a bit better now."