Henryk Kasperczak says "Zimbabwe were surprised" by Tunisia's "aggressive presence" as they stormed to a 4-2 win over the Warriors in their final AFCON Group B match on Monday.
The result saw Zimbabwe eliminated from the competition in Gabon, with one point, following an earlier 2-2 draw with Algeria and 2-0 loss to Senegal.
Naim Sliti had opened the scoring after nine minutes at the Stade de l'Amitie in Libreville
Youssef Msakni added a second on 22 minutes with Taha Yassine Khenissi on target after 36 minutes.
Knowledge Musona pulled a goal back with 42 minutes played, but Wahbi Khazri put the game beyond doubt with his 45th minute penalty, ahead of a 58th minute consolation goal from Tendai Ndoro.
After the game a delighted Kasperczak said: "We came to play without speculating, without calculating. We went out to win; we did not want to control and have a draw.
"I think Zimbabwe were surprised by the way we were playing – kind of aggressive with our presence.
"Fortunately we had efficiency that caused us to score goals. I do not think we have to change the strategy in order to go further in the competition.
"As we have seen until today, the matches are played on details. Fortunately in the first half we made a difference and in the second half our players were able to control the game."