Dave Rennie concedes he understands the frustration after the Wallabies suffered their first-ever defeat to Italy.A new-look side was no match for an Italian outfit brimming with confidence, stunning the visitors with two first-half tries.Once again, the Wallabies struggled with discipline and execution, leaving Rennie struggling for answers after the match."It's hugely disappointing and it's not good enough," Rennie said after the match"All I can say is it's hurting. You go into the change rooms and the boys are hurt, they know we're better than that.“I understand the frustration…it hurts everyone involved but we had a good enough side to win but we gave up too many soft points and position and that eventually hurt us.”The Wallabies almost pulled off the great escape after a late Caderyn Neville try, however, debutant Ben Donaldson's conversion sailed to the right.“It’s tough, he’s hurting,” he said on Donaldson“We’ve definitely got an arm around him. It’s easy to look at the last few seconds but we did a lot wrong to put Ben in that situation to steal a game.“We feel for him but it’s not the reason we lost today.”The decision to make 12 changes from the narrow France defeat caused plenty of conjecture, with Rennie opting to rest the likes of Rob Valetini, Michael Hooper and captain James Slipper.Whilst some were injury forced, such as losing Nick Frost before kick-off, Rennie defended the call as the Wallabies search for answers before next week's clash with world number one Ireland."It's not much more changes than we made the week before,” Rennie explained.“Obviously there were a couple of extra bodies that we would have played today had they not been injured from the French game but we pick squads a long way out and whether they have been tweaked or not, we looked at how we were going to give ourselves the best chance to win all five games on tour.”We had a good enough side out on the paddock tonight to win."Click Here: Alisson Becker jersey sale