Dwayne Peel pulled no punches after Scarlets’ disappointing Judgement Day showing on Saturday.
The West Walians were a long way short of their best at the Principality Stadium, as the Dragons claimed a 31-14 victory to sign off their BKT United Rugby Championship campaign.
Peel said: “It was a poor performance, that opening period was littered with inaccuracies and I was disappointed with the energy shown by us.
“We had opportunities in the second half, but our attack in their 22 was poor as well. We need to be better come Monday.”
Scarlets still have a massive European semi-final to look forward to against Glasgow on Saturday, but Peel refused to use that as an excuse for the sub-par showing in Cardiff.
“I don’t want to use that as an excuse because we need to be tougher than that mentally,” he added. “We have had consistency and steeliness over the last couple of months and we didn’t have it today. We have to look at ourselves, that goes for staff and players. If we are not better against Glasgow we are going to get hurt.
“We will need to look after the ball better, we need to be more clinical when we create opportunities, our set piece didn’t function either. We were sloppy in a lot of areas, the boys know that and are disappointed by that.
“In all aspects we need to raise standards. Don’t take anything away from Dragons, they put us under pressure and finished their chances which is credit to them. Come Monday we have to make sure we come in with a positive mindset and go up a few levels ready for a huge game.”