The nation's managers have labelled HR reactive and say the function fails to play an important role in managing change.
And, managers believe, HR needs to improve it's influence with senior executives and concentrate on aligning with business goals.
The findings, from the seventh annual Management Agenda study by the Roffey Park Institute, surveyed 735 UK managers. It found that while 32 per cent of respondents felt HR added value to the business, some 37 per cent believe it lacks credibility.
Some 90 per cent of the organisations surveyed reported experiencing change, predominately as a result of restructuring. Nearly a third (32 per cent) downsized - up 20 per cent in a year.
More managers than ever before (74 per cent) reported suffering work-related stress, while 57 per cent said their workload had increased in the past year.