CREATE TABLE table_22954 ("Team" TEXT, "Outgoing manager" TEXT, "Manner of departure" TEXT, "Date of vacancy" TEXT, "Replaced by" TEXT, "Date of appointment" TEXT, "Position in table" TEXT)

Who came as a replacement in Sheffield United?
SELECT "Replaced by" FROM table_22954 WHERE "Team" = 'Sheffield United'
SELECT "Replaced by" FROM "table_22954" WHERE "Team" = 'Sheffield United'