If you talk to higher management, make sure the project neglect and subsequent loss of income is forefront in your concern. If the problem person has friends in

If you talk to higher management, make sure the project neglect and subsequent loss of income is forefront in your concern. If the problem person has friends in higher management, you may be screwed one way or the other, but if you keep it about the finances of the company you stand a much better chance of being heard and even appreciated. Otherwise, I'd say update your resume and quietly start looking elsewhere.