A 'very disappointed' Bruno Guimaraes claimed Newcastle were a 'mess' as they slumped to a 4-2 loss against Brentford.
The fixture began in explosive fashion as both teams scored twice inside the opening 32 minutes.
Newcastle's winless run extended to a fourth game with a 4-2 loss to Brentford
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Newcastle's winless run extended to a fourth game with a 4-2 loss to BrentfordCredit: Getty
Brentford's second goal was certainly from a Newcastle perspective, as Harvey Barnes carelessly passed the ball straight to Yoanne Wissa, who gleefully drove at the Magpies backline before firing past Nick Pope.
Barnes atoned for his error by scoring the equaliser, but Newcastle could not match Brentford in the second half as goals from Nathan Collins and Kevin Schade wrapped up the three points.
Collins' goal came from a free-kick lumped forward by Brentford goalkeeper Mark Flekken while Sandro Tonali's soft turnover led to Schade's strike, underlining how easily the Magpies gave up goals.
The loss was Newcastle's fifth of the season and extended their winless run to a fourth game as they sit 12th on the ladder.
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It also continued the Magpies' poor away form this term, having won on the road just twice.
Speaking to Newcastle's in-house media team after the contest, Guimaraes opened on his frustrations at the defeat as Eddie Howe's side slipped further away from the European spots.
"First half, we have some good moments," Guimaraes said.
"But the second [half], we became a mess. After the third goal, we lost our way, we lost control. We became a mess on the pitch. Very disappointed."
Worryingly for Newcastle, the four goals shipped against Brentford made it seven goals conceded in two games after the club's pulsating 3-3 draw against Liverpool on Wednesday.
Played in front of a raucous St. James' Park, Newcastle appeared to have turned a corner with an impressive performance against the league leaders.
Guimaraes was brutal in his assessment of Newcastle's performance against Brentford
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Guimaraes was brutal in his assessment of Newcastle's performance against BrentfordCredit: @NUFC on X
But the Bees brought out the worst in Howe's side, sparking serious questions about a defence that just two seasons ago conceded only 33 league goals across the entire campaign, eight more than they have this term after 15 games.
However, Guimaraes does not believe it's a problem isolated just to the backline.
"We have been conceding a lot this season," Guimaraes said.
"We've got Champions League and we didn't concede as much as we have.
"This is not a problem about just the defence. It's a problem for the midfield, a problem for the attack. It's the team's problem.
"We have to stop this. But our season, being honest, has been very, very disappointing."
Howe has a big job on his hands to fix Newcastle's recent defensive woes
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Howe has a big job on his hands to fix Newcastle's recent defensive woesCredit: Getty
Howe also pulled no punches in his assessment of his team's performance and bemoaned the string of individual errors that ultimately proved costly.
"That's the frustration, because before that we looked tight at the back, the issues were at the other end of the pitch," Howe said.
"Now we've scored five in two games and looked a really good attacking team, some of our attacking work was really strong today.
"Lo and behold we then we go and concede seven in two games from nowhere really. It's difficult to work out because structurally we've been fine but there were a lot of individual errors today.
"We've got work to do in a lot of different areas. There's a very good team in there, I've got no doubts, but we haven't shown it consistently enough, we haven't delivered it anywhere near enough for my liking.
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"A period of reflection and a period of work, then we'll try to fight back."
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Howe and his Newcastle side will hope to have found a solution to their defensive woes in time for their next fixture on December 14 as they host Leicester City.