Just as his style of medicine clashed with Bob's when John first arrived in town, John disapproved of how Bob's son, Christopher, dealt with his patients—thinking that Chris went way beyond the call of duty. Although Chris fully expected to be dismissed from Memorial, John surprised him by offering him a position.
Similarly, John initially disagreed with Bob's medical style when he first entered town, and John was equally disapproving of how Bob's son, Christopher, treated his patients—thinking that Chris consistently exceeded the expected level of care. However, John unexpectedly offered Chris a job at Memorial despite initial expectations of dismissal.