NEW World First Bus has denied claims it is forcing frontline staff to quit in order to employ new recruits at lower wages. Union members say a number of drivers - all ex-China Motor Bus employees inherited in the September 1998 takeover - have been sacked in recent months for poor discipline and driving errors. Staff union secretary Wu Wai-chik said: 'The majority of them were really borderline cases.' But New World First Bus managing director Adolf Hsu Hung dismissed the claims in the company's staff newsletter. He insisted there were no plans to replace staff who had worked for China Motor Bus. 'The aim of the company's staff recruitment drive, especially that for frontline bus captains, is to do with route development and improving the timetable to allow staff to have sufficient journey and resting times,' said Mr Hsu. First Bus employs about 2,500 frontline staff.