How many drafts were included in the year that the Pistons moved to Detroit?
1957 NBA draft: The 1957 NBA draft was the 11th annual draft of the National Basketball Association (NBA). 1957 NBA draft:  The draft was held on April 17, 1957, before the 1957–58 season. Detroit Pistons:  Since moving to Detroit in 1957, the Pistons have won three NBA championships in 1989, 1990 and 2004.
i don't know