CREATE TABLE table_204_635 (id DECIMAL, "round" DECIMAL, "selection" DECIMAL, "player" TEXT, "position" TEXT, "college" TEXT)

who was drafted before robert alford ?
SELECT "player" FROM table_204_635 WHERE id = (SELECT id FROM table_204_635 WHERE "player" = 'robert alford') - 1
SELECT "player" FROM "table_204_635" WHERE "id" = (SELECT "id" FROM "table_204_635" WHERE "player" = 'robert alford') - 1