Results matter.
But how employees get results -- their personality and behavior -- matters more.
Here's our guide to the four types of employees -- and do's and don'ts for getting the best from them.

Royalty
Picture your fitness director. She's rolling out new programs, handling customer issues, recruiting great staff. You'd clone her in a heartbeat. Great attitude and work ethic, sharp and productive. She sees challenge and opportunity where others see obstacles.
Business risk: You'll lose them if they feel underappreciated, taken advantage of, or bored.
Common mistakes: Taking them for granted. Ignoring their interest in career growth and learning new things. Failing to honor their efforts and express appreciation for their accomplishments.
The approach: Treat them like...well...royalty! Good performers want positive and specific feedback about what they're doing well. They often want new challenges. While pay matters, "soft rewards" work too -- public praise and unexpected pats on the back like extra paid vacation or a fruit basket delivered to their home with an appreciative note.
Ticking Bombs
This is the personal trainer who has good rapport with the clients he likes -- but rushes the clients he doesn't enjoy, treats the front desk staff like peasants, ignores club policies and standards, leaves the "dirty work" for everyone else. Some clients love him -- but he leaves a trail of broken glass: hurt feelings from other staff, upset clients, and wastes your time smoothing ruffled feathers.
Business risk: Failure to address the issues, either because you're afraid he'll take the clients and go, or because you cringe at the thought of an argument with him. Gives other staff the impression that this person is untouchable. Suggests this kind of behavior is completely acceptable. Demotivates good performers who have to put up with it.
Common mistakes: Ignoring the "broken glass". Or discussing it repeatedly with the problem employee, but allowing it to continue uncorrected for a long time.
The approach: People like this cost far more than the value of their work.
Do the math:
Imagine what you could be doing with three or more extra days...Imagine how much happier and productive everyone else will be if they're not furious after every interaction with this guy.
Our experience is that people like this rarely change problem behaviors. So as a manager, you need to quickly get a performance improvement plan in place so that the individual either rapidly improves, or rapidly leaves the company. You mustn't let it drag on indefinitely.
Specifically:
This kind of discussion is really tough for most managers. Rehearse so that you can confidently address the employee. Role-play with a trusted advisor. Or give us an hour or two of your time and we'll help you get ready.
If this person is in a key role, start identifying possible replacements before you initiate the performance discussion. The odds are high that you're going to end up replacing him sooner rather than later.
Question marks
Picture your nutritional consultant. She's super-enthusiastic and knows a lot about nutrition. But her client skills are terrible. Clients complain that she acts like the "food police". They leave her presentations confused by the technical jargon. Yet she energetically tackles any project you give her.
Or perhaps you've got a very personable yoga instructor who's great with special populations -- very empathetic and extremely knowledgeable, and gets along great with the other employees. But he's frequently late for sessions and staff meetings. You're constantly taking personal messages for him during the work day. And although he always sounds eager to tackle new projects, not much really happens without your hands-on involvement.
Sometimes people just don't have the skills or experience for the job they're in. Sometimes they have the capabilities, but personal matters distract them.
The approach: Begin by assessing whether this is a knowledge issue, a time management issue, or a boundary issue.
If it's knowledge:
If it's time management:
If personal issues cross the boundary into work performance:
End of the road
This is the billing manager who's rude to staff and customers, error-prone, and blames everyone else when things go wrong. Lousy attitude, difficult or high-maintenance temperament, mediocre to poor work.
Remember that first and foremost, businesses pay everyone to produce results. Poor results + poor attitude = wasted money and time. Tolerate them and demoralize good employees and alienate customers.
Business risk: Most importantly, the business needs results from this employee or their position wouldn't even exist, right? So the company is paying for results it's not getting. Plus, like all staff issues, failing to address this drags down good employees. It's usually apparent to customers as well.
Common mistakes: Avoiding an often difficult termination discussion with the employee, resulting in prolonged tolerance of clearly bad performance.
The approach: Take prompt action to protect your business and resolve the performance issue.
One final note
When handling difficult employee situations, the Family And Medical Leave Act (FMLA) and the Americans With Disabilities Act (ADA) may apply, as well as other state and federal laws. Consult your company's attorney for legal guidance.