Anonymous wrote:Stop giving her too much work!
Rearrange her work load. Try to utilize the less busy people more
+1 I think the way you are looking at this is evidence of poor management on your part. You see her being burnt out as her fault, when it's clear from your post that you have thrown more work her way, expected her to do more, and it doesn't sound like you've given her a raise. that's how people get burnt out -- they start to see that they do 20 percent more work than their coworkers and they are never compensated for it.
So, yeah, telling her "you should take a vacation, you seem burnt out" is going to come off as not only offensive but a statement that her being burnt out is her fault.
The first thing you should do is offer her a bonus or a financial reward for going above and beyond what others are doing for the last 5 years. I promise you, if you flat out give her a raise or a bonus (without asking for more than she's doing), you will suddenly see a peppier employee.
another option is to offer her more vacation time AS a bonus, i.e. "for so long, you have gone above and beyond, we'd like to give you an extra week of vacation as a bonus, but you have to use it by the end of the year.
If you frame it as rewarding her for all of her extra work, she will feel appreciated. but if you suggest that for all of her extra work all of these years, all she gets is criticism now that she's doing the same amount as her coworkers, then you'll only encourage her to find a new job, one that will reward her for her work.