 Walker was a much more conservative, traditional MCPON than his predecessor, John Whittet.During his term, Walker often raised the ire of some by identifying directors of Navy programs who were not serving the best interests of the navy (such as a director of the Board of Corrections of Naval Records, and a commander in Pearl Harbor who was separating sailors for being overweight even though he himself was obese) and saw to their quick removal.He was instrumental in creating the Navy's Senior Enlisted Academy, from which virtually all subsequent MCPONs were graduates.