shiftless

Etymology

shift + -less

adj

1. Lazy, unmotivated.
   Decades ago, before credit scores, loan officers could make decisions almost whimsically and your fate could hinge on whether you reminded them of someone, or they had slept poorly the night before, or they harbored stereotypes of "shiftless blacks" and "flighty women." 2015, Philip E. Tetlock, Dan Gardner, Superforecasting: The Art and Science of Prediction
2. Untrustworthy as a result of being incompetent at the job.
3. Destitute of shifts or expedients; lacking proper means.