Clarke 's 1422 victories and 969 losses lead all managers of the Pirates in their respective categories , Clarke also had the longest tenure as manager in his 16 years in the position .
In 1900 , Fred Clarke began his tenure with the franchise .
Fred Clarke 's 1422 victories and 969 losses lead all managers of the Pirates in their respective categories , Fred Clarke also had the longest tenure as manager in Fred Clarke 's 16 years in the position .
In 1900 , Fred Clarke began his tenure with the franchise .