Louis van Gaal claims Manchester United are “attacking 70 per cent” of the time so is confused by ‘attack, attack, attack’ chants.
The Dutchman has questioned whether the fans want to see more long-ball football, but claims that their only direct option is to play Marouane Fellaini as a striker.
United have not lost in any competition – barring a penalty shoot-out defeat to Middlesbrough – since early October, but there is still dissension in the stands.
Only three clubs – Stoke, Newcastle and West Brom – have taken fewer shots in the Premier League this season.
The club retain their backing of Van Gaal, who is on course to win the Premier League title within his three-year contract.
They face West Ham on Saturday at Old Trafford without the injured Wayne Rooney.
0 – Man Utd have not lost any of the seven PL games they've played without Wayne Rooney in the Louis van Gaal era (W4 D3). Absent.
— OptaJoe (@OptaJoe) December 4, 2015
Van Gaal said: “Last season I said a lot of things about the fans and their support for us despite the results.
“But now the results are reasonable or very good and sometimes they shout ‘attack, attack, attack’.
“But we are attacking 70 per cent, because we have the ball.
“Maybe they want more long balls, more activity in the 18-yard box? Yes, that is possible. But I think we don’t have the players to play with long balls.
“Then we have to play with Marouane Fellaini in a striker’s position and he is not a typical striker. Then we have to buy other strikers and that is not our opinion.
“I think it is very important the fans are supporting the team. That is so important. It is also a big boost for the players.
“We have to understand nowadays it is not so easy to disorganise opponents who are defending the way they have been at Old Trafford.
“When you see our figures, they are very good at home. And away, in comparison to last season, the figures are also good.”