To elaborate a little more on jonstewarts excellent answer: It sounds like you're comfortable with two of them because, in your words, "Two are like I was". Y

To elaborate a little more on jonstewarts excellent answer: It sounds like you're comfortable with two of them because, in your words, "Two are like I was". You manage 4 people. You're lucky that you can relate to two of them and their work styles. I say this because everybody works a little differently than everybody else. And everybody is going to have strengths and weaknesses. As a great manager, it's up to you to play to each person strengths. The other two employees may be scatter-brained, so perhaps task them with very specific goals that aren't as time critical as the other ones. The term Rock Star Programmer, is so fucking overused, overhyped and just plain stupid and I wish that it never entered into our vernacular. It's also your job to realize realistically, where your employees have weaknesses (trust me everyone does). A great manager will help bolster areas that people are weak in, in a way that doesn't demean them. Management ain't easy.