3 in 4 managers say Gen Z is the most 'challenging' generation to work with — and 40% of the group flagged a lack of technological skills, effort, and motivation, a new survey shows.Getty Images About three-quarters of managers find Generation Z employees difficult to work with, according to a new ResumeBuilder.com survey. The managers said Gen Zers lack technological skills, effort, and motivation. It's so bad that 27% said they've fired a Gen Z employee within the first month. Nearly three-quarters, or 74%, of managers and business leaders said Gen Z is the "most challenging generation" to work with, according to a ResumeBuilder.com survey published Wednesday.About 40% of that group said it's because people in this age group lack technological skills.