When I listen to Ole, he sounds like a really nice guy," van Persie said on BT Sport. "I would like to see him a bit more mean at times, just be angry.
"I see him smiling now after a game like that. This is not the moment to smile.”
"They need a gameplan and a bit of fear for the coach," he added. "You know if you don't make those runs or make that pass, you will be punished and you won't play the next game."
When asked if United players lacked fear, he replied: "Probably. By the looks of things, I think so."