As a manager, Tatís spent ten seasons in the Mexican League, most notably winning back-to-back championships with the Diablos Rojos del México in 2002 and 2003.
[2][3] After seven years in the Blue Jays' minor league system, Tatís signed with the Pittsburgh Pirates in 1988 and was assigned to the Triple-A Buffalo Bisons of the American Association.
[2] In 1990 he signed with the Texas Rangers and spent the next two seasons playing for the Oklahoma City 89ers of the American Association and the Canton-Akron Indians of the Eastern League.
On 31 July 1994, he became the seventh player in the history of the Mexican League to play all nine positions in a single game doing so against the Piratas de Campeche at the Parque Deportivo del Seguro Social.
[3] In 1997, Tatís signed with the Wei Chuan Dragons and finished the season as the CPBL stolen bases champion with 71, a record that stands till today.
Later that year, he rejoined the Wei Chuan Dragons for the final 22 games of the CPBL season, helping the team secure its third consecutive Taiwan Series championship.