By Henry Jacobs The Australian U20’s have defeated the Australian Barbarians 47-19 in an impressive performance at Chatswood Oval on Tuesday night. In their final match before travelling to Italy for the 2015 World Rugby Under 20 Championships coach Adrian Thompson said there  were plenty of positives to take away from the match. “It’s a big improvement from where we were at Bond [University], we had some time to prepare and defensively we were really good,” Thompson said. “They scored one freakish try and a couple of pick and drives but in general we were much better.” Steady rain in the hours before the match made for slippery conditions in hand and underfoot, but after a slow start the young Wallabies were able to compose themselves to post a substantial win. “It was a little bit scrappy and there’s plenty to work on, but a wins a win so we’ll take it and move on,” U20’s captain Andrew Kellaway said. “We’ll go over the tape and have a look