(Bloomberg) -- Apple Inc.’s top executive overseeing its Siri virtual assistant told staff that delays to key features have been ugly and embarrassing, and a decision to publicly promote the technology before it was ready made matters worse.Most Read from BloombergTrump DEI Purge Hits Affordable Housing GroupsElectric Construction Equipment Promises a Quiet RevolutionHow Britain’s Most Bike-Friendly New Town Got BuiltThe Dark Prophet of Car-Clogged CitiesOpen Philanthropy Launches $120 Million F