I'm not entirely certain that you read all the way to the end of my reply. To really lock someone up, you need both a non-disclosure and a non-compete. And an

I'm not entirely certain that you read all the way to the end of my reply. To really lock someone up, you need both a non-disclosure and a non-compete. And anyone worth a non-compete should make it really expensive for the company that is asking for it. You're trading away potentially several years worth of lost opportunity costs to basically not be what you are for some time after leaving a company.