Nigel Clough felt Derby looked like a non-league side as they slipped to a 2-0 home defeat by QPR in his first game in charge.
Clough has followed in the footsteps of his father Brian by becoming Derby manager after a successful 10-year reign at Burton, who he left as runaway leaders of the Blue Square Premier.
But Clough was unable to inspire an immediate turn-around in fortunes at Pride Park on a frustrating afternoon.
First-half goals from Wayne Routledge and Mikele Leigertwood were enough to give QPR their first away win since September and Clough believes the Rams must get back to basics.
Asked if he was bitterly disappointed, he said: "Those two words are quite fitting.
"We started quite brightly but we were in possession both times for the two goals we conceded.
"You can only do so much to get a positive feeling around the place but when that first goal goes in everything reverts to type and that's something we have to deal with.
"A few players were below par and people didn't do their jobs.
"The strikers didn't hold the ball up and the wide men didn't get crosses in, the sort of things we got used to at our previous club.
"There were not too many positives to come out of this apart from to highlight and emphasise the problems.
"We want a more positive attitude on the pitch. There were not too many people looking to go forward, we are at home in front of 28,000 people so let's get on the front foot."
The victory was only QPR's second league win on the road this season and Paulo Sousa's first as Rangers boss.
The day was soured by a serious injury to Martin Rowlands, though, which forced the Hoops' skipper to be stretchered off after 12 minutes.
"I want to dedicate this victory to him," said Sousa. "He always wants to win, he is a fighter, our captain and our leader.
"We could have lost him for the season. We think there is a problem in one of his knees, we will know more later but if we have lost a player, we have not lost a person."
Sousa felt his side's performance was a great response to their FA Cup exit at Burnley in midweek, when they were beaten by a goal in the last minute of extra time.
"We have been looking for this victory because in the last five games we have been unlucky not to win three of them," he added.
"When you lose in the 120th minute it is not easy to deal with but my players answered that very well today.
"We showed a lot of personality to come here and control the game. We played so well it means the hard work we have been doing is coming off and I am delighted to get my first away win."