Singapore, Sept. 27 -- More employees have been given the green light to return to workplaces, but there are still many challenges facing companies and staff preparing to make the shift back to the office.

These range from the need to reconfigure work areas to maintain safe distancing to the mental readjustment workers have to make to pivot back to being on-site.

Introducing staggered hours or shifts may also create problems, said human resource executives and experts.

Mr Leong Chee Tung, chief executive and co-founder of human resource technology firm EngageRocket, said it might be counterproductive to make staff work half the day at home, and half in the office.

"Task switching has a significant effect on attention and productivit...