Ruben Amorim was left visibly furious at one thing that Manchester United players did during their Europa League clash against Bodo/Glimt.
United took the lead in the first minute through Alejandro Garnacho, but found themselves behind after goals from Hakon Evjen and Philip Zinckernagel.
Rasmus Hojlund equalised shortly before half-time with a well-taken finish, before making it 3-2 in the second half to further stake his claim for a spot in the starting XI moving forwards.
There was plenty of promise for Amorim in the second half after he made tactical tweaks, and the performances of Hojlund and Noussair Mazraoui in particular will have impressed the Portuguese boss.
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But there were still plenty of areas for improvement - as Amorim saw first-hand in the first half.
As per The United Stand, Amorim was visibly angry in the first half when United players failed to work the ball out wide to Antony, who was operating as the right wing-back.
They wrote: "Manchester United didn't switch the ball quick enough to Antony on the right side and Amorim is making that known to the players. He's not happy on the touchline."
The Brazilian was making his first start of the season, but was taken off in the second half as Amorim made key changes.
Those changes helped United to hold on for their first victory under Amorim after the 1-1 draw at Ipswich on Sunday.
Speaking after that game, Amorim explained what he wants to see from his players moving forwards.
He told Sky Sports: "We cannot [control the game] at the moment, but they really tried. They are really, really trying and they want this.
"That's the reason [differences from what they are used to]. We have two ways - we try to just win games and risk nothing in this moment, and I guarantee this year, at the same stage, we will have the same problem.
"So we will have problems, the players will be confused sometimes. But we have to address the new idea and try to be better next year at the same stage.
"People talk about 3-4-3, but a system is a system. The understanding of the game, I think we have to improve a lot in this area."
Topics: Ruben Amorim, Manchester United, Europa League
Ryan Smart