The Denmark captain joined Inter in January from Tottenham and has endured a slow start to his Serie A career.
Bergomi isn't surprised, stating: "Sometimes players are not well known, Eriksen is not a footballer who gives their play an edge.
"He has good feet, he shoots well from the outside, but in a 3-5-2 he can't play as a midfielder.
"He is a midfielder behind the two strikers, but you have to change something to make him play in the best way. And then he is not a footballer that tackles.
"Future as a director? I don't know, he is a midfielder who never fights for it."