Blackpool manager Ian Holloway blamed a defensive lapse for ending his side's unblemished start to the npower Championship season after Derby left Bloomfield Road with a 1-0 victory.
Rams midfielder Bryson was the quickest to react after Matt Gilks pushed out Steven Davies' free-kick and Holloway felt his defenders let down their goalkeeper.
"We couldn't get what we needed which was the first goal, and then to give it away in that fashion makes me sick," he said. "It feels like I've had to watch something in horror.
"To see so many tangerine shirts standing there ball watching after a fantastic save from my goalie, who's been excellent, the back four have let him down. No way should their bloke get there first.
"But he did. He showed a better will and a better drive. Then it was a case of us trying to break down a door and unfortunately we couldn't do it."
Blackpool enjoyed long periods of possession with scant reward in the way of clear chances and Holloway felt the tempo of his side's play undermined their efforts.
"We moved the ball too slowly," he added.
"There are some fundamental things that my lads have got to remember - that is receive the ball from back to front and always look forwards. When we did that we did have the odd effort.
"Unfortunately it didn't go in for us and we didn't make enough of our possession.
"Such is life, we played a good team, they beat us and we have to go again on Saturday."
Derby manager Nigel Clough was left to reflect on a satisfying night's work after his side made it three wins from their first three league fixtures for the first time since 1948.
"We'll be in the 1800s if we get a result on Saturday," he said.
"That was probably our best performance of the season because of the place we've come to and the standard of the opposition.
"We were very solid and I'm incredibly proud of the players. I didn't think we had a bad player tonight.
"It's been three excellent results for us that have been perpetuated by the hard work.
"There's a good spirit among them and they're a very honest bunch of players.
"They might not be good enough at times, but we'll forsake a bit of that for their hard work and honesty."