For a straight-ahead technical role in an organization that will likely get a stack of candidates and sort them by qualification, then probably not. For any job

For a straight-ahead technical role in an organization that will likely get a stack of candidates and sort them by qualification, then probably not. For any job that requires interpersonal nuance or lots of cooperative teamwork or artistic creativity, the cover letter could be more important than the resume. I've evaluated candidates for both types of roles.