From what little you explained, it’s hard to figure out why your employee would react like that.
You did say you’d only been working with that employee for a short time, though, which got me thinking about my own experience with employee reviews.
During the last two years that I worked for The Company From Hell, I had 7 different bosses. The company was grossly mismanaged, repeatedly sold/merged/downsized/reorganized.
I had several “reviews” during that time, and each time the line I got from my boss-of-the-week was about the same as what you say above: “Well, I’ve only just started working with you, but I think you’re OK… Let’s wait and see where things go…”
My reaction was the following (I’m glad this is the pit):
<rant>
A review can affect my career in fundamental ways. Even if the review does not enter into salary evaluation (yeah, right, like I’m going to believe that bullshit when over 50% of my division just got laid off, sometimes for extremely questionable reasons, just to save a dime) it can affect my future status with the company (promotions, etc.) or with other companies (I have quoted good reviews on resumes).
If you don’t know anything about my history or work record you have no fucking business giving me a review. If you are obliged to review me, then you should A) contact my former boss(es) to ask about their experiences B) talk to my fellow employees who have a lot more experience with me than you do C) talk to me about this stuff myself before you finalize your review, so that we come to an understanding about how WE will handle something that affects MY career on a fundamental level.
If you can’t see your way to doing that, then I guess you need to learn more about how to manage others, especially in sensitive career-affecting situations that determine our future working relationship.
Don’t fuck with my job if you can’t do your own right.
</rant>
P.S. The “you” in my rant is my imaginary boss, not you thewiz. I just want to offer another perspective.
P.P.S. During the period that this stuff took place in my career, I created a software product for my company that saved the credibility of a whole division of the company, and did most of the groundwork (internal training, courseware creation, product manuals, marketing collateral and strategy, product development, etc.) that got the first release of that product out the door. I have nothing to show for that now. You can imagine how being told that I was competent but not exceptional might not have sat well…