Why Royal Navy operational research outpaced the Kriegsmarine

What examples explain the Royal Navy's operational-research advantage over the Kriegsmarine?

Britain mobilized analytical expertise more systematically and had more opportunities to recover crews, evidence, and enemy survivors from anti-submarine operations.

The Royal Navy combined war games and operational research with a wider mobilization of personnel, including the WRNS. Germany was slower to organize comparable work and mobilize for total war. Anti-submarine warfare also produced an uneven supply of operational evidence: Allied surface-ship crews were more likely to survive a loss and report what happened, while destroyed U-boats often yielded no surviving German witnesses. German submariners who escaped a sinking were also more likely to be recovered by Allied forces. Britain consequently had more opportunities to learn from losses and enemy survivors.