The Poles needed a second-half penalty save by little-known goalkeeper Przemyslaw Tyton to earn a point despite a rousing start.
"We were really prepared and you could see the effects of all our training sessions," Smuda told a news conference. "Perhaps the team had too much pressure. The team is young."
"We wanted to maintain the [1-0] score. We played sideways and backwards," he said. "The Greeks had nothing to lose."
Smuda praised replacement keeper Tyton, who saved Giorgos Karagounis's penalty with his first touch 20 minutes from time after Wojciech Szczesny was sent off for bringing down Dimitris Salpingidis.
"Tyton, at the clubs where he played was really spectacular at [saving] penalty kicks," Smuda said.
"We're still in the game. I hope that if we play like we played in the first half, we could win the next two games," he said.
"I congratulated the players on this game," Smuda said. "I told them cheer up because it would be much worse if we had lost. We should not dwell on this result."
