He told Ligue 1's official website: "Character and personality are important. My players showed both at the end of the match.
"The start of the second half wasn't good from us. My team has a lot of quality but quality alone is not enough. I saw a lot of mistakes being made. James Rodriguez? I've been hard on him.
"I spoke to him and told him he's a champion and I believe in him. He produced two assists and played well."
The last-gasp win over ASSE means that Monaco remain top of Ligue 1 heading into the international break on goal difference ahead of defending champions Paris Saint-Germain.