Poor HR Planning and lack of it in the Organization may result in huge costs and financial looses. It may result in staff posts taking long to be filled. This augment costs and hampers effective work performance because employees are requested to work unnecessary overtime and may not put more effort due to fatigue. If given more work this may stretch them beyond their limit and may cause unnecessary disruptions to the production of the Organization. Employees are put on a disadvantage because their live programmes are disrupted and they are not given the chance to plan for their career development.
The most important reason why HR Planning should be managed and implemented is the costs involved. Because costs forms an important part of the Organizations budget, workforce Planning enable the Organization to provide HR provision costs. When there is staff shortage, the organization should not just appoint discriminately, because of the costs implications of the other options, such as training and transferring of staff, have to be considered.