Frustration. Disappointment. And simply, "it wasn't good enough!"
"We've seen how Burton play, we've shown it to the squad and we've spoken about not conceding that first goal...and then it happens from a throw in, we weren't marking tight enough, their player gets in front of Liam Kelly and scores. And we have to chase the game to get back into it," manager Jaap Stam explained.
"They made it difficult to play through them, but if a team is playing in a certain way, you need to play against it with a quality of pass, the first touches need to be good, the choices on the ball need to be good.
"But too many players weren't at the level we can expect from them today. That can happen. But it makes it very frustrating."
Even when the hosts equalised through top scorer Mo Barrow and it seemed the Royals might capitalise on the momentum and go on to win the game, errors handed Nigel Clough's men the lead!
"We got that goal and after that you think it's going to pick up and we might go on to win it. And then we conceded another cheap goal.
"We weren't accurate with our passes at the back, made the wrong choices and it bobbles in. We gave the goal away ourselves.
"The players always make the choices out on the pitch. We can only hand them a plan, a strategy. When they get out on the pitch, the players need to do it.
"When we have so much possession, you are looking for your players to get into certain areas, where they can get that ball and go forward as quick as they can. The players have to make that decision, where to run to get that ball and then what to do with it.
"When you're out there as a manager, you need to trust your players. Ther majority of the time it goes well, but sometimes it goes wrong.
"When they get out on the pitch, it is up to them to take the game into their control, execute the plan and try to win the game.
"But today, the players are frustrated that what they were trying to do did not go well."