There is an art to it. Over the past 30 years I’ve had some successes, but many performance improvements were way too long in coming.
Kuna sanaa hiyo. Katika kipindi cha miaka 30 iliyopita nimepata baadhi ya mafanikio, lakini wengi utendaji maboresho walikuwa njia muda mrefu sana katika ijayo.