Problems arise when we coddle weakness.

Problems arise when we hammer weakness.

And there is a very fine line between these two opposite ways of dealing with weakness.

Should we acknowledge weaknesses?

Yes. We should acknowledge weaknesses. The best way to do that is to present weaknesses in terms of being areas where strengths do not exist. We should focus on strengths, acknowledge weaknesses, and figure out ways to cover one person's weaknesses with other people’s strengths. As we do this we must understand even the softest of criticisms can often be very poorly received. Many people have very thin skin.