Ruben Amorim believes Manchester United were guilty of overthinking as his Premier League managerial bow ended in a 1-1 draw at Ipswich Town.
The Red Devils made a flying start to the Portuguese's tenure as Marcus Rashford netted in only the second minute at Portman Road.
But Omari Hutchinson's deflected equaliser restored parity and Andre Onana had to make a couple of big saves from Liam Delap to ensure Amorim started with a point.
Speaking to Sky Sports after the game, Amorim said: "I think my players were thinking too much during the game, they were thinking not just with the ball, but, 'where am I supposed to be?'
"It is hard because the team has been together only two days, I think we needed more in the first half with the physicality, because they left us one against one up front so we have to use those moments to feel the opponent.
"I think we lost some balls without pressure and when you start a game like this, you score one goal, then you have to control the ball, you have to control the tempo of the game.
"We cannot do it at the moment but they tried, they really, really tried. I know for some guys it's hard to understand this but they're trying and they really want this."
Amorim conceded that United, who are 12th in the Premier League, need to be better in their game management moving forward.
"I think that is a concern because you can understand you don't need to coach them at this level (how) you have to keep the ball, put the momentum in to put the ball up front," he added.
"At the end of the game, we are around the box with two strikers, Josh (Zirkzee) has to understand he has to go to the box to have the crosses, so we are doing things not in the right moment. That is something we have to address.
"Everyone talks about the 3-4-3 – that is not the problem, but the understanding of the game... we have to improve in this area."