Ernesto Valverde tried to put the criticism down to high demands and snap reactions but Barcelona's malaise, underlined by a goalless draw at home to Slavia Prague on Tuesday, will be laid at the feet of their coach.
After losing 3-1 at Levante in La Liga on Saturday, Barca produced a performance that offered few assurances and even less encouragement this will be the year they, and Lionel Messi, win the Champions League again.
Messi hit the crossbar but was unable to deliver the goal at a restless Camp Nou that might have papered over the cracks and, at least, quietened the whistles at the finish.
Gerard Pique and Valverde both pointed to the tables in the team's defence, with Barcelona sitting top of La Liga and first in Group F, still more than likely to go through, although with first place now up for grabs.
If they fail to win at home to Borussia Dortmund later this month, it could well be that Barca, Dortmund and Inter Milan are all within three points of each other going into the final round, when Valverde's side are away at the San Siro.
And in the league, they lead, but not with conviction. Level on points with Real Madrid, Barcelona are only one ahead of Sevilla in fifth, albeit having played a game less due to last month's postponed Clasico.
"In football today, and in a team like ours, it's all about winning," said Valverde. "And if it can be emphatic, even better. It is never enough.
"At the start of the season, it's not about winning one title, it's about winning three or four. So the frustration when you don't win a game is high."
"Today it looks like they wait for Messi to do something and the strength of the team-play has gone. It looks like they have lost their charisma."
"But that doesn't mean continuing while wearing a blindfold."
"If you can fall into a hole in three days, in three days you can also climb out of it."