Maybe I've just been lucky, but in my 15ish years of working I've found the correlation between "good programmer" and "good manager" to be zero or possibly even negative. Most of the best managers I've had either never could've done my job or hadn't programmed since Lisp went out of fashion. However what they all did have in common was that they knew their limitations and always deferred to the relevant experts when faced with technical decisions that they didn't have insight into. You need a lot of skills to be a good manager, being able to make good technical decisions is one you can easily delegate.
Maybe I've just been lucky, but in my 15ish years of working I've found the correlation between "good programmer" and "good manager" to be zero or possibly even negative. Most of the best managers I've had either never could've done my job or hadn't programmed since Lisp went out of fashion. However what they all did have in common was that they knew their limitations and always deferred to the relevant experts when faced with technical decisions that they didn't have insight into. You need a lot of skills to be a good manager, being able to make good technical decisions is one you can easily delegate.