Vidic was particularly pleased with the reaction to last Saturday's disappointing Barclays Premier League defeat to West Brom.
"The most important thing is I saw improvement," he told MUTV. "I saw solidity, I saw a reaction from the last game. We were hard to beat in all positions, not just at the back, but in midfield and wide, and that's the way we have to play. We have to work hard, play as a team and hopefully goals will come.
"We improved, we didn't let them have many chances to run at our defence. Our team worked really hard but there is still room to improve, and that's a good thing. We know we have not played at our best yet, but we still have time to improve and the next game is really important."
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