Continued employment is sufficient consideration for some contracts http://www.jacksonlewis.com/publication/continued-employment-adequate-consideration-non-comp

Continued employment is sufficient consideration for some contracts http://www.jacksonlewis.com/publication/continued-employment-adequate-consideration-non-compete-imposed-mid-employment-hawaii-judge-rules http://www.jacksonlewis.com/publication/continued-employment.... However, I can't imagine that if Yahoo was so desperate to retain its executives that it would fire them if they didn't sign the agreement. I'm guessing that there was some additional incentive offered.