From India , Mumbai
Do a SWOT analysis of your company and why the employees are not satisfied may be they are unable to do the sale, if one person is unable to do that its his mistake but for the past 5 years you are suffering then it must be some problem in the target or price for the product or the targeted customers etc... Analyze your company's SWOT then take a person according to that who can work with these criteria. Since the company's cooling is maximum of 2 years now it is 5 years (I Hope) its high time you need to get an experienced employee for this. Hope you are competitive in salary with the industry and fix him a target of 2 times of his CTC. Then see your sales. Should you require any other information please do let me know.
From India, Cochin