I wrote this article last year when an executive team left Twitter dealing with items such as Garden Leave, Post-Termination Restrictions, IT, and Social Media. It's a useful reminder if your organisation is currently in expansion mode and recruiting senior people!
It cannot be underestimated just how important it is to ensure that the contractual provisions are realistic and go no further than is reasonable/adequate to protect the employer’s legitimate business interests. Each contract should be tailored to the employee, their role and level within an organisation. Even the definition of confidential information should be reviewed regularly to ensure it deals with the specific information that a senior employee will have access to. A one year post-termination non-compete restriction may be appropriate for a Sales Director, but is likely not going to be enforceable against other administrative type roles.