So if you want them to change, try this: Be open and Honest!
- Most employee's believe they are doing no wrong. (because no one has ever told them).
- Employees want honest feedback (good or bad), it's human nature wanting to be the best we can possibly be.
- It's not fair to let good employee's just deal with your problem, so you need to take care of it.
- Find the root cause: why is the employee acting in the manner which has become a problem for everyone else.
- Next set a timeline where the employee can prove they are of value, and not a problem (this can be verified by everyone that is surrounded with the employee, if they have noticed a change in them).
- Finally (use as a last resort), If the employee does not want to change, then you need to make the change by letting them know they're better off somewhere else, but it's not going to work out here.
It's not going to be easy, yet it's in the best interest of everyone involved. You have to face them, have an open and honest conversation to get the results you are looking for. Try it you might be surprised with the results.