Comtech taps Chief Corporate Development Officer John Ratigan as interim CEO, effective immediately, succeeding Ken Peterman, terminated as president-CEO and from the board for conduct unrelated to Comtech’s business strategy, financial results or previously filed financial statements; Comtech also elects current board member Mark Quinlan as chair ... PayPal hires SoFi’s Aaron Webster as executive vice president-chief enterprise services officer, effective Monday ... Equinix, digital infrastructure company, names Google Cloud executive Adaire Fox-Martin president-CEO, succeeding Charles Meyers, moving to executive chairman to replace Peter Van Camp, becoming special adviser, all effective late Q2 ... People.ai, generative AI company, hires Microsoft’s Linda Simovic as executive vice president-chief product officer ... New Enterprise Associates, global venture capital firm, taps Microsoft Deputy Chief Technology Officer Lila Tretikov as partner and head-AI strategy.