If someone is "less than productive" you let them go. If they could use some improvement, encourage them to spend their 20% non-core work time learning and impr

If someone is "less than productive" you let them go. If they could use some improvement, encourage them to spend their 20% non-core work time learning and improving their basic abilities. Better to grow a less-productive employee who could improve than to roll the dice and try someone else, or expect anything to change while piling on a full workload of critical tasks.