Swindon manager Paolo Di Canio was still not satisfied after watching his team demolish Yeovil 4-1 at the County Ground.
The hosts were always in control after Andy Williams had given them a 24th-minute lead but perfectionist Di Canio felt his side could have done better.
"We had to suffer a bit in the first 20 minutes when nothing was happening but in the end we should have scored more than four, maybe as many as eight," he said. "I think we need to be more nasty and ruthless because we had many more chances and four goals was not a reflection of the way we were on top for so long.
"The lads did their best I must admit, I would say 90% of what they did was positive, but sometimes we were too tippy-tappy.
"I should be happy with four goals and three points from a good home win but I am not completely satisfied. We dominated everything and put them into trouble but we have to learn to kill off opponents."
Yeovil manager Gary Johnson has summoned his players for training on Sunday morning after the disappointing display.
Johnson said: "We were outplayed, outfought and they were cleverer than us. The score was a fair reflection. Swindon were better than us individually and a few of my players did not turn up.
"A few home truths were said after the game and we will be training on Sunday morning to sort out a few things that need sorting out.
"We do not have the quality they had in front of goal. They are also more experienced than us and our youngsters have a lot to learn.
"Some of our players go missing when we go to the bigger places but we cannot change anything until January. We will get there in the end."