"Diversify your resume." "Build up your skill set." "Show how well-rounded you are." You've probably heard these conventional pearls of wisdom while searching for work — but as it turns out, there is such a thing as too much diversification, having too many skills, and being too well-rounded. Steven Tulman, VP of strategy and business development at ICM, says in a recent LinkedIn post that attempting to master skill after skill may prevent you from becoming an expert in one area, which can be detrimental to you as a job candidate.