Edwards said, "We have to defend the final (stages) better, we have to brush up on those things.
"We will continue to work hard on that and if we don't we know what will happen. The boys were incredible especially in the second half.
"We got done in the first half with two set-pieces, but in the second half we were outstanding - we pushed them back and dominated the game.
"It's all linked, we have to learn. It's hard to think about positives, but there is so much to like.
"If we can keep massive aspects of what we are doing then I believe we can do this. There are little areas we have to improve on quickly.
"We finished the game with not many defenders on the pitch. It is hard with injuries, but I am not going to complain about it.
"The lads took their chance today, it was an outstanding performance against an outstanding football team. Villa have great individuals and are very well coached."