[2][5] Constantin Teașcă was born on 25 September 1922 in Giurgiu, Romania, starting to play junior level football in 1932 at local club, Acvila.

[1][2][3] Constantin Teașcă started coaching in 1955 at Romania's under-18 national team, managing to win its group at both of the 1955 and 1956 European Championships.

[1][2][3][8] In 1962, Teașcă had his first spell at Romania's national team, his first game being a 4–0 home victory in a friendly with Morocco, a match in which he debuted eight young players: Gheorghe Dungu, Vasile Sfetcu, Emil Petru, Constantin Koszka, Zoltán Ivansuc, Marin Voinea, Vasile Gergely and Iosif Lazăr.

[1][2][3][9][10] His following two games were a 3–2 loss with East Germany in a friendly and a 6–0 defeat in front of Spain at the 1964 European Nations' Cup qualifiers.

[1][2][3] In the following years, Teașcă worked at FC Galați, Steaua București, Șoimii Sibiu and Universitatea Craiova, at the latter he debuted many young players like Nicolae Tilihoi, Aurel Țicleanu, Mircea Irimescu, Ion Geolgău and Sorin Cârțu, also managing to win the 1976–77 Cupa României but he left the team before the final as he had conflicts with many players.

[1][2][3][12] In the last years of his career he worked at several clubs, including from the Romanian lower leagues like Steagul Roșu Brașov, FCM Galați, Victoria București, Bihor Oradea, Universitatea Craiova, Montana Sinaia and Drobeta-Turnu Severin, having a total of 323 matches as a manager in the Romanian top-division, Divizia A consisting of 120 victories, 64 draws and 139 losses.

[2] Argeș Pitești star, Nicolae Dobrin's conclusion about Teașcă was:"Poor Titi, everywhere he went he made stadiums, fields, only teams he couldn't make".