The three keys USB logo is seen outside the London office of Swiss bank UBS in central London, on March 20, 2023.LONDON — UBS on Thursday announced a shake-up of its executive board in the latest phase of a radical overhaul of the Swiss banking giant, following its takeover of fallen rival Credit Suisse.A newly split global wealth management division, led by co-presidents Iqbal Khan in Asia-Pacific and Rob Karofsky in the U.S., sees the bank double down across the two geographies as part of what it has dubb ...