Under Murphy’s Law, what can I expect to go wrong during employment agreement negotiations?

Twelve of the most common negotiation mistakes that might jeopardize a deal are: 1. Recruitment package is not finalized, but the candidate is ready to talk seriously  2. Letter of intent is not finalized 

3. The final working agreement (contract) is not drafted 4. Disagreements about offer  5. Indecision among key players  6. Poor response time  7. Lack of understanding of what the candidate really wants  8. Lack of knowledge on how to negotiate  9. Opening offer is too low  10. One or both parties have a win-lose attitude  11. Offer description lacks flexibility  12. Emotion replaces good business sense and the eye loses sight of the ball.