Who came as a replacement in Sheffield United?
CREATE TABLE table_19359427_6 (replaced_by VARCHAR, team VARCHAR)
SELECT replaced_by FROM table_19359427_6 WHERE team = "Sheffield United"
### Context: CREATE TABLE table_19359427_6 (replaced_by VARCHAR, team VARCHAR) ### Question: Who came as a replacement in Sheffield United? ### Answer: SELECT replaced_by FROM table_19359427_6 WHERE team = "Sheffield United"