Manager Danny Wilson expressed mixed feelings after seeing his Sheffield United side beat Bournemouth 5-3.
Ryan Flynn scored twice for the Blades with John Cofie, Richard Cresswell and Nick Blackman (penalty) also on target.
Tommy Elphick, Lee Barnard and Marc Pugh were on the scoresheet for Bournemouth.
Wilson was very pleased with his side's attacking display but was also left to reflect on the goals they conceded.
"I'm absolutely delighted to have scored five goals but there's also disappointment from our point of view because we've conceded three," said Wilson.
"We never really put the game to bed when we should have done and a couple of decisions kept them in it. We let them back in the game.
"I have to say that Bournemouth played very well and they're going to be a threat this season with the quality of the players they've got. They'll give teams lot of problems.
Bournemouth boss Paul Groves also felt his side's defending left a lot to be desired.
"You can't come to Sheffield United and gift them three goals, which is what we've done," he said. "We nearly got back in the game but we again gifted them a goal.
"You wouldn't have seen that coming, in respect of what's gone before. It's not as if we've been conceding lots of goals or looked like conceding lots of goals."