Slacking on your cover letter? I wouldn’t hire you.

LinkedIn: I recently looked for a new manager-level hire. I got over 100 résumés indicating a great deal of interest, but I was shocked to see that over 90% did not have a cover letter, and some cover letters were addressed to a wrong person. People often complain that they never hear back from the companies they apply to, and this may be one of the reasons why.