UBS Warburgáhasáundergone a major upheaval in its corporate finance divisionáfollowing the loss of co-head Suneel Kamlani and his replacement by Jardine Fleming group executive director Mark Dowie. Kamlani's decision to move back to the USáwill be seen by some as major blow to the Swissábank as its tries to edge rival US investment banks out of the top rankings for mergers and acquisitions work in Asia.