CREATE TABLE table_204_783 (id DECIMAL, "position" TEXT, "player" TEXT, "free agency\ tag" TEXT, "date signed" TEXT, "2013 team" TEXT)

who was the previous player signed before troy nolan ?
SELECT "player" FROM table_204_783 WHERE "date signed" < (SELECT "date signed" FROM table_204_783 WHERE "player" = 'troy nolan') ORDER BY "date signed" DESC LIMIT 1
SELECT "player" FROM "table_204_783" WHERE "date signed" < (SELECT "date signed" FROM "table_204_783" WHERE "player" = 'troy nolan') ORDER BY "date signed" DESC NULLS LAST LIMIT 1