"It is an incredible honor to be asked to lead our Olympic Team and I am truly grateful for this opportunity," Bowman said after the Wednesday announcement. "I take this responsibility very seriously and will strive to help each team member be at their very best in Rio. There is much work to do, but I am confident that Team USA will again represent our great nation in an exemplary fashion."
Bowman served as an assistant coach for the U.S. teams at the 2004, 2008 and 2012 Olympics, the three meets at which Phelps accumulated a record 18 gold medals. He will be joined by women's head coach Dave Marsh, who oversees the powerful SwimMAC Carolina club based near Charlotte.
"Bob and David are two of the most dynamic, innovative and well-respected coaches in our sport," said National Team director Frank Busch. "They've done amazing work with many of the world's top swimmers and their international experience will be valuable as they guide our athletes in the lead-up to and at the Olympic Games."
Bowman recently left his post as head coach and CEO of North Baltimore Aquatic Club to take over the men's and women's programs at Arizona State. Phelps followed him to Arizona to continue his preparations for a fifth Olympics next summer in Rio de Janeiro.
In addition to Phelps, who re-asserted himself as the world's best male swimmer with a dominant performance at last month's Phillips 66 Nationals, Bowman coaches Olympic hopefuls Allison Schmitt and Chase Kalisz.
He has made little secret of his disappointment with the times turned in by most top Americans since the London Olympics. So expect him to be a demanding presence in the run-up to next year's games.