How many medals does an American former competitive swimmer and the most decorated Olympian of all time own, he also  had an American swimming coach who served as the head coach for the Michigan Wolverines swimming and diving team?
Bob Bowman (coach) Robert Bowman (April 6, 1965) is an American swimming coach who is the current head coach of the Arizona State Sun Devils swimming and diving teams of Arizona State University. Bowman is best known as the coach of record-breaking American swimmer Michael Phelps. From 2005 to 2008, Bowman served as the head coach for the Michigan Wolverines swimming and diving team of the University of Michigan men's swimming & diving team. From 2008 to 2015, he worked as the CEO and head coach for North Baltimore Aquatic Club.
Oscar Osthoff Oscar Paul Osthoff (March 23, 1883 – December 9, 1950) was an American athlete and coach. Osthoff won the gold medal in the all-around dumbbell event and the silver medal in the two hand lift competition at the 1904 Summer Olympics. He later attended the University of Wisconsin–Madison, where he lettered in four sports: football, track and field, gymnastics, and swimming. Osthoff served as the head football coach at Washington State College—now Washington State University—from 1910 to 1911, compiling a record of 5–6.