Louis van Gaal insists he has full confidence in Ed Woodward's abilities despite criticism of the Manchester United executive vice-chairman.
Woodward came in for criticism after Pedro moved to Chelsea, rather than United.
But the United boss maintains he has a good relationship with Woodward and has faith in his ability to bring the best players to Old Trafford.
"I have the idea you want to separate Ed Woodward with me. Never. Never," the United boss said in a spiky press conference.
"Because every day I am updated by him and I trust him."
Van Gaal added: "I don't think they (the critics) have to doubt Ed Woodward because he has proven already for many, many years he is the right person on the right spot."
Van Gaal seemed to corroborate other sources' claims that he was the one who pulled the plug on the club's pursuit of the player.
"I think when we want Pedro it was not any problem because there was a clause in his contract," Van Gaal said.
"It was the easiest transfer. I have said before what we are doing is guiding a process and in that process we make decisions."
Despite bristling at constant questioning regarding Pedro, Van Gaal suggested he is not too disheartened at failing to sign the forward.
When asked whether there would be any more signings before the transfer window shuts, Van Gaal said: "You have to wait to see.
"It's not any pressure for me. We have 28 players. We did it last season without Pedro."
It is understood Van Gaal has now turned his attention to Southampton winger Sadio Mane.
Van Gaal said he would not speak publicly on Mane as he did not want to "interfere" with the club's pursuit of the Senegalese.
He added: "I cannot answer that question neither because I cannot interfere. I don't want to interfere. It's for Ed Woodward doing the things and he does it very well, I think."
