Citi tech chief Tim Ryan explains why he won't track employees' every AI move

Daniel Terna for BI Tim Ryan, Citi's tech chief, brought Business Insider into the bank's AI strategy. He's focused on scaling AI use and not relying too heavily on metrics for cost or token usage. Ryan has prioritized reducing contractors over full-time employees, as the bank trims headcount. Around 45 minutes into Citi's second-quarter earnings call, when talking about AI efficiencies, the bank's chief financial officer name-dropped another executive: Tim Ryan. Citi is counting on Ryan, the…