3 of Man United’s last games in all competitions ended in goalless draws.
Neville believes former managers would’ve been scrutinised for such a run.
Speaking to Sky Sports about the Crystal Palace draw, Gary Neville said: “Manchester United have got to find something from somewhere. You can’t have too many performances like that.
“I always said in the past when Louis van Gaal or Jose Mourinho were the manager, you can win, you can lose, you can draw, but you can’t be boring and that was boring tonight, watching that.
“They let games drift for large periods. They’ve got to be on the front foot. You’ve got to have performances. You will get results sometimes when you play badly, but eventually it will catch you out. You need performances.”
Wednesday’s trip to Palace in the Premier League was Man United’s third consecutive goalless draw across all competitions (also vs Real Sociedad and Chelsea).
The Red Devils have now played 4 hours of football without finding the net, a grim omen ahead of Sunday’s vital clash away at Manchester City.