CREATE TABLE table_15887 ("Season" FLOAT, "Player" TEXT, "Position" TEXT, "Nationality" TEXT, "Team" TEXT, "Draft Pick #" TEXT, "Draft Class" TEXT, "College" TEXT)

How many teams had a #1 draft pick that won the Rookie of the Year Award?
SELECT COUNT("Team") FROM table_15887 WHERE "Draft Pick #" = '1'
SELECT COUNT("Team") FROM "table_15887" WHERE "Draft Pick #" = '1'