Manager Peter Houston was critical of his Dundee United players after a below-par performance in the 1-0 loss to Celtic at Tannadice.
"I thought, technically, we were very poor," he told BBC Radio Scotland. "Our passing was very poor.
"When you play against Celtic or Rangers you have got to have belief and I don't think we had that belief.
"On our own pitch, Celtic set a tone in the first 20 minutes, we got into a rut and we never really got out of it."
United failed to pose any attacking threat in a match that was won by Gary Hooper's 12th-minute strike.
"We were kicking the ball out of the park with nobody near us," groaned Houston.
"I'm not asking them to do something they can't but their second touch was a tackle.
"If you don't take a good first touch, if you don't move the ball quickly, you're not going to create chances
"When you're at home, you should be creating more chances that that.
"We battled hard enough, we fought hard enough and I don't think either goalkeeper has had much to do.
"But, on the day, I thought Celtic were the better team.
"We went to Ibrox recently and lost 3-1 but we passed the ball really well and you can handle that a bit more than that today."