Nikesh Arora, CEO of Palo Alto Networks, appears on CNBC's "Squawk Box" at the WEF Annual Meeting in Davos, Switzerland on Jan. 16th, 2024.Adam Galici | CNBCNikesh Arora, the CEO of Palo Alto Networks, is joining Uber's board of directors, the company announced in a regulatory filing Wednesday.It comes amid a broader executive shakeup this week at the ride-hailing company, which saw head of delivery Pierre-Dimitri Gore-Coty depart after 13 years. Andrew Macdonald, head of mobility, was promoted ...