A poorly constructed cover letter or lack of cover letter will likely land you a spot in the «you're not a fit, but thanks for your interest» pile. (ngcareerstrategy.com)
However, the deliberate lack of cover means that they may in turn leave themselves vulnerable. (blog.us.playstation.com)
For many recruiters, lack of a cover letter could mean the applicant is lazy or not serious on the job search. (resumeprofessionalwriters.com)