Manchester United captain Bruno Fernandes was left frustrated after their 2-2 preseason friendly draw with Everton in Atlanta.
Fernandes struck from the spot on Sunday, but United twice gave up their lead on the night.
"It’s improving, but it’s not where we want it to be,” said Fernandes.
“It’s a game of football, there’s always passion there. Whatever happens, happens. There was nothing spicy there, it’s normal, it is part of the game.
“It’s been positive and it’s good to create a bond with the players. We looked a bit lazy today and we need to change that.
“I don’t want to have a dig at anyone, but I think the club is doing the best they can in terms of all the financial situations they talk about. I don’t know about it. I’m not involved in that. But obviously it was crystal clear we needed more competition for the players that were here.
“We needed more quality to get everyone to step up a bit more and to have more to do to get into the starting line-up. I think that’s what the club and the manager are trying to do and hopefully we can get one or two players more to help with that.”
Building a winning culture
Fernandes is demanding improvements in every area as the new Premier League season approaches.
"It’s every detail, every small detail matters,” said Fernandes. "At this football club, you can’t do anything wrong on the pitch and off the pitch, because it’s too big worldwide and you get punished by that.
“You get the attention of the media and your fans and you have to be aware of that. At this club the culture here was winning and we need to bring that back.
"Not only the winning mentality that we need, and I think that’s always been there, but obviously if you don’t win you don’t show it.
"The club is trying to improve other things; the facilities have improved, we tried to improve the team, the staff, a lot of things. A lot of people have suffered from this; a lot of people who had been working at the club for many, many years had to go.
"The fans are paying more for tickets and we appreciate all the effort they put in for us so now it’s up to us to pay it back on the pitch."