Ruben Amorim believes Manchester United's 2-0 defeat to West Ham at Old Trafford on Sunday came down to a "lack of urgency".
Tomas Soucek and Jarrod Bowen scored on either side of half-time to complete the Hammers' first Premier League win since February, ending an eight-match winless run.
Soucek flicked in Mohammed Kudus' low centre in the 26th minute while Bowen similarly turned in former United defender Aaron Wan-Bissaka's pass in the 57th.
United created plenty of chances, particularly in the second half, where Rasmus Hojlund saw several opportunities go begging, with wastefulness in front of goal proving costly for the hosts.
The defeat was United's ninth at Old Trafford in the Premier League this season, their joint-most at home in a single league campaign along with 1930-31, 1933-34, and 1962-63.
Speaking to BBC Match of the Day, Amorim reflected on the disappointing result.
"I think it's quite similar to some games that we've had, especially at the end of this season," Amorim said.
"We have more chances than the opponent, and then we suffer two goals that we can avoid.
"There's a lack of urgency when we're defending our box. There's a lack of urgency when we are near the box.
"We need to be more aggressive, and we need to feel that it is the end of the world when we are not winning a game. Especially when we are not winning.
"So it's a big problem that we have here at the club. It's a decisive moment in the history of the club."
Indeed, United are in a poor run of form in the Premier League, having now gone winless in their last seven matches (two draws, five losses) – their joint-longest ever run in the competition (also seven from September to November 1992).
Despite their recent results, though, Amorim insisted that his side do not fear losing games.
"We are not scared of losing a game as Manchester United. We don't have that fear anymore, and that is the most dangerous thing that a big club can have," he added.
The Portuguese also took responsibility for the team's performances, adding: "It's not the players' fault. It's my fault, I'm responsible. If we cannot change that really fast, we should give our place to different persons.
"Everybody is focused on the [Europa League final]. The final is not the biggest thing in our football club.
"We need to change a lot of things. If we don't change the way we play and perform, and feel this urgency of winning every game, we should not play in the Champions League.
"Then we should just stay in the Premier League and learn how to be competitive one week at a time."
United face Chelsea in the Premier League next before an all-English showdown in the Europa League final against Tottenham on May 21.
Graham Potter, meanwhile, was pleased to have snapped his side's run of eight matches without a win.
"Sometimes we talk about performances a lot as coaches, but results are nice. We've been in the middle of a really tough run, and [Sunday] was great in that regard," the Hammers head coach told BBC Match of the Day.
"The players executed things really well. Good intelligence. They showed all the things they needed to win a football match. A great day for everyone involved with West Ham.
"You can talk tactics, but it's about desire and application and sticking together. The player's attitude and commitment to what we're trying to do has been first class.
"We have the capacity. We just have to keep working."
Sunday's victory was only West Ham's second away win under Potter and their first at Old Trafford since 2006-07, ending a run of 16 league trips there without a win.
MukisaGerald
0
seriously Manchester United team has become a garbage where any opponent will come happy to win against , it just too easy to win against United nowadays
nuwckotuz
0
Oga change your information you are wary the players down with it ..
vundeklmnt
0
every time I see hojlund play is either loss or draw.He is worse player in united history.Cannot control ball always keep falling cannot turn to attack.
Kanilmz
0
Maybe 🤔 indispensable coz this might be if players don't love their coach,they don't love their play
Tunbdlmuy
0
Get some legit goal scorers things will get better fast
wimlmpru
0
pls sack Amorim.. worst of the worst manager..
Tasbcprtz
0
Every MU fans blame all the coaches have been take charge for MU. They think Amorine gonna save them now again 🤣🤣 It have been many years 🤣🤣🤣🤣
rupanrstyz
1
hojlund is not a player
muhammad1991
1
this guy can't manage united he should accept that
yutacilrst
1
2 relegation escapees will fight for champions league spot. amazing EPL
Yuwanostz
0
this man always something to complain what exactly does Amorim and his coaching team do during training session
this is to show u how incompetent he is a coach that sticks to only one.formation 3-4-3 formation apart from this he couldn't try another way
Yuwanostz
0
man utd are competing just to share marks for other English premier league cubs
lbcrna
2
this man always something to complain what exactly does Amorim and his coaching team do during training session
Laacenuy
2
the Portuguese manager always responsible for the owful play with the most useless striker, keeper and inexperienced players leading the team with horrible tactics and formation
fapacknost
1
Here they go, from coach to coach, from player to player but they are not uniting.[50percent]
OverloadElidemaskino
0
He wants to quit already. The Portuguese also took responsibility for the team's performances, adding: 🗣️"It's not the players' fault. It's my fault, I'm responsible. If we cannot change that really fast, we should give our place to different persons"
Tuznortuyz
1
I think Man Utd should give Amorim this season to prove himself
RealAnfield
1
Who should correct the lack of urgency?
Mauritius1684510
1
You picked the wrong team Amorim. Blame yourself for the defeat. Your technical skills are not working at Manchester 👍. You have been the worse manager for United. Grow up man. Allthe players you have got rid from United are playing better under different Coaches .Cheers 🍻
Fudge007
1
lol lack of Urgency to get you out the club yes😭🤣🤣
Nobbceortu
0
oga, are you sure, as in pretty sure, with all these excuses, lead Man U? Your records are awful
Wabaikmoty
2
every game same excuse