Poland coach Pawel Janas has been advised by a former international team-mate to consider dropping Celtic striker Maciej Zurawski.
Maciej Zurawski was the lone striker up front
Zurawski failed to shine as Poland lost their opening match at the World Cup finals 2-0 to Ecuador.
And Andrzej Szarmach said: "It is clear that we need to make changes in tactics and in selection."
Asked who Janas should drop, he said: "Zurawski was clearly out of form, he did not play as we would like."
Szarmach, a member of the Polish team which finished third in 1974, was also critical of Austria Vienna midfielder Arkadiusz Radomski.
He and Wlodzimierz Smolarek, another member of that successful Polish team, will meet Janas before Wednesday's vital Group A game against hosts Germany.
If it was me, I would go back to 4-4-2 and play Ebi and Zurawski up front
Poland employed a new defensive formation against Ecuador, with Zurawski as a sole striker and Radomski as a second holding player in a five-man midfield.
And he will be urged to return to a 4-4-2 formation that netted the Poles 27 goals in qualifying behind England.
Smolarek - whose son, Ebi, played on the wing against Ecuador - said: "The midfield was the main problem.
"They weren't prepared to push up enough. They was too much of a gap to the forwards.
"We need to set ourselves to beat the Germans and if need be settle for a draw.
"If it was me I would go back to 4-4-2. I would play Ebi and Zurawski up front."
Smolarek also said Janas, who has himself hinted at changes, should take a chance on starting Ireneusz Jelen after he came off the bench to hit the woodwork late on against Ecuador.
Jelen can play as a striker but has been used on the right side of midfield by Poland.
"We know Pawel, we have our chance to talk to him, to help him work out what changes he needs to make," said Smolarek.
"He has to take a risk. Find a joker he can play. Maybe Jelen is that joker."
Celtic goalkeeper Artur Boruc's position in Poland's starting line-up does not, however, appear to be under threat.