Scarlets: Wayne Pivac frustrated by missed chances in Belfast
Scarlets coach Wayne Pivac was left frustrated after his team suffered a third defeat in three Pro12 games.
Scarlets paid for missed opportunities, with Pivac singling out a second half incident when Aled Davies had a pass intercepted when a try looked certain.
"It was a two-on-one walk-in that would have made it 11-10 and then it's a different ball game," he said.
"So it's very frustrating.
"There was some solid work put in out there. We were down to 14 and we held them out and there was an opportunity to win it in the second half but we didn't take that two on one and the rest is history."
Scarlets clawed their way back to within six point when Will Boyde scored with five minutes remaining.
But Iain Henderson's stoppage time touchdown denied them even a losing bonus point which means the Welsh side are pointless after three matches.
But Pivac believes his side are improving.
"I thought it was a a step in the right direction," he told BBC Wales' Scrum V programme.
"It was definitely an improvement in terms of the effort out there.
"If we weren't creating opportunities we'd be more worried.
"But we're creating numerical advantages and it's just putting those two on ones, three on twos to bed. We put one away but there was one there that should have been put away and wasn't.
"The guys themselves understand it's a slow start for us and we're working on that really hard and I think you see there's improvement there and you've just got to take those opportunities when they come.
"We know we can put it right and hopefully next week we can do that."