Non-fluid employees of large corporations

Large corporations, be it IT or non-IT (I will talk more in terms of IT firms), have the tendency of making people stick or non-fluid i.e. the same group of employees (the entire hierarchy) carrying on from one project to another. Though restructuring and location-transfers help to certain extent, but the time period during which this stickiness develops is shortening. Yes, this helps the organization in a way (better bonding between team members since they have been working together for long), but it also creates a problem. With such clusters getting formed, you would either have to go for the complete cluster or nothing. Hence, the skill availability gets severely hit and, while the employee utilization levels remain low, there is always demand for people -- a fake demand due to artificially choked supplies.

Final word
I think though such stick clusters are good, however, these clusters should be broken at regular intervals in order to ensure better access to talent across the organization. One important break-point should be the allowed time-frame for the cluster to remain a cluster once it is on 'bench'.