Aston Villa boss Paul Lambert was delighted with their 4-3 victory over West Bromwich Albion.
Lambert thought his side showed a new level of maturity as they recovered from a poor start to claim only their third home win of the season in the Barclays Premier League.
He said: "To be 2-0 down in any game after eight minutes or whatever is tough but in a derby game it doubles, because of the importance to the crowd.
"But the turnaround was fantastic. What a performance that was. To turn it around the way we did was fantastic.
"You never lose faith. It was important we kept a level head and tried to get ourselves back into it.
"We showed a lot of maturity in doing that. I think they grew up a lot by doing that, especially against their rivals.
"That is the magnitude of it and it was great."
