McLeish is excited by what he's seen from his young tyros.
"Watching them in training this week, they are so vibrant. You can see they have a good understanding too. They have played together for quite a long time," Eck told Villa's website.
"Weimann and Bannan, for example, know each other inside out. They have a good telepathy.
"Gardner was one of the young boys I was told about when I arrived. Could he be better than his brother, Craig?
"He had just come back from a bad injury and I thought it was a big weight on his shoulders with people trying to thrust him into the first team limelight at the start of the season.
"But he's gradually got a good level of fitness and he's looking good.
"Then there's Weimann. I've always liked him. I saw him in a reserve game here and he impressed me. Not only does he score goals, he works like a trojan off the ball too.
"He harasses defenders and never gives them a minute."