There is an old story of two surgeons - one with a near zero patient death rate and one with a much higher patient death rate. But the surgeon with the higher

There is an old story of two surgeons - one with a near zero patient death rate and one with a much higher patient death rate. But the surgeon with the higher death rate is tackling harder more complex surgery on sicker patients - while the other avoids the complex stuff. There is nothing wrong with either.