CREATE TABLE table_73353 ("Year" FLOAT, "Starts" FLOAT, "Wins" FLOAT, "Top 10" FLOAT, "Poles" FLOAT, "Avg. Start" TEXT, "Avg. Finish" TEXT, "Winnings" TEXT, "Position" TEXT, "Team ( s ) " TEXT)

What are the racing teams for which the average finish is 23.3?
SELECT "Team(s)" FROM table_73353 WHERE "Avg. Finish" = '23.3'
SELECT "Team(s)" FROM "table_73353" WHERE "Avg. Finish" = '23.3'