The best practice is for a manager meet with his/her direct reports once a week. This can be a relatively quick meeting to review progress on all assigned objectives and to discuss potential road blocks and or delays. At the very minimum this meeting should take place on a monthly basis. It is extremely important that each employee know that their manger cares about their assigned objectives and is willing to do whatever it takes to make the employee successful.
Dan Stewart
Mr. Objectives
Twitter: @MrObjectives