Let’s not forget that you can have the best of both worlds (evidence from systematic reviews and clinician experience/insight). For example this review (Mulier S, Ni Y, Jamart J, Ruers T, Marchal G, Michel L. Local recurrence after hepatic radiofrequency coagulation: multivariate meta-analysis and review of contributing factors. Ann Surg. 2005 Aug;242(2):158-71) investigated among other things physician-dependent favorable factors including greater physician experience.

Ahmed