However, Benitez is having none of that but does admit not all of his buys were successful.
Since the Spaniard left his successor Rot Hodgson has been axed and Kenny Dalglish installed as interim boss.
Benitez, who joined Inter Milan in the summer but left before Christmas, told Five Live Sport: "I agree, so we know we made some mistakes.
"Sometimes, maybe one player is a good player and after he doesn't settle down, but if you see, we have a net spending of between 10, 12 million.
"So I think that this, for a top side...it's not big money.
"And still I would say to you that we are not happy with some of the signings but we are really pleased with the majority of them.
"I am not taking all the credit, I think the team is good, the problem may be the mentality. So I think Kenny can change these things and will hopefully be good for the team.
"But the other thing is that Christian Purslow (former managing director) and Hodgson, they signed seven players.
"Seven players is enough to change a squad, so you can take responsibility for signings in the past but seven players can change a squad. So you cannot continue with this story about the legacy.
"It's not my fault, sorry."