Who is greatest enemies of a sales person?

i think that the enemy of any  person espically the  sales person him self...if he has a self confidence

he can sell anything 

GREATES ENEMIES OF SALES PERSON :-

• Demotivating Colleagues
• Time spent on wrong customers
• Mis-Comitmments
• Non-Supportive Team Leaders / Managers
• No Appraisals / No Performance Management

A gretest enemy of sales person is a competitors of your product

bad customers

bad product

bad sales skills

another sales person, or sometimes himself 

" Bad  Product  "

Thanks for invitation