I don't have any book recommendations but it really is just management skills, so look up some business books. The main temptation you need to avoid is "micro

I don't have any book recommendations but it really is just management skills, so look up some business books. The main temptation you need to avoid is "micro managing", and instead you just need to have faith that people will do what you ask them to do, albeit via a different path than you may have taken. In terms of justifying the cost of labour versus DIY - it's just an "opportunity cost" argument. If you can get better returns from your time by doing something else (eg not programming, and just dedicating a bit of time for coaching your people) then it will be worth employing others. If not, then stick with what you are doing. Hope that helps :)