U.S. Treasury Secretary Scott Bessent announced new sanctions on Venezuela this week. - Getty Images Regime change in Venezuela would likely lead to improvements in the nation’s oil-production infrastructure that could help unleash more supplies and keep a lid on prices for the global economy. Yet it would it take time and billions of dollars to fix — and the output boost may not be as impressive as some would expect. Most Read from MarketWatch Global oil supplies have been climbing, leading to forec ...