Swansea head coach Luke Williams struggled to hide his frustration after the Whites went down to a 1-0 Sky Bet Championship defeat to Plymouth.
Morgan Whittaker struck the only goal of the game after 18 minutes – his ninth in his last 10 games as Argyle made it six games without defeat.
Back-to-back Championship defeats and a fourth loss in a row in all competitions leaves Swansea head coach Luke Williams still searching for his first league win since he took charge.
It also leaves the Swans just five points clear of the relegation zone.
Williams said: “I am frustrated that we didn’t turn really good actions into goals. When you create 19 chances and at least four of them are in the six-yard box, there’s not an excuse to not win the game.
“What is it that’s wrong with those chances? For me, nothing. It’s just concentration, finish the action correctly and we’ll win the game of football.
“The goal we conceded, we lose concentration again from a long ball forward. Whittaker hits the shot that leads to the corner. Then, from the corner we switch off, the player gets blocked and it’s a good strike.
“It’s unfair that he (Ronald) doesn’t have at least one assist. We tried to make it clear what his role is.
“We have had a few guys to interpret on the training pitch and I am really happy because he didn’t try to do his own thing or show off.
“He just tried to play in the game I asked him to play it – so much energy, so many runs in behind. So many players don’t want to do that because it’s hard, you have to keep sprinting and then you have to provide for someone else.
“I want him to feed the striker. I am happy with him.
“I don’t like that (relegation situation), of course I don’t like that. We need to concentrate on trying to play really well.
“If we can create 19 chances every week and create openings in the six-yard box, we’d have to be a very unlucky team to suffer more.
“We have some tough fixtures but that’s the job. There’s no sulking or feeling sorry for myself.”
Plymouth head coach Ian Foster was glad to see his side grind out a victory.
He said: “In my short time at the club, we have had to find a way of winning on the road. Sometimes you have to make sacrifices in order to do that.
“Our challenge is to maintain the attacking threat we have but from a really solid defensive structure.
“That was probably a perfect performance today in terms of doing that.
“Of course at times we have to get better with the ball, but we have to start somewhere. We have to get the points on the board.
“I have worked with Morgan in the England pathway, so I know what he is capable of.
“I took him and his partner for breakfast on Wednesday, the day after the club turned down a bid for him from Lazio.
“It was just to see how he is and see what we can do to help him and keep him focussed on his game.
“It’s my job to continue to develop him into the player we all hope he can be.”