It's a little like casting out hundreds of fishing lines into the audience. You start getting little bites, then more, then you hook a few, then more. Then you can start reeling them in and that's a loveliest feeling - the whole audience laughing with you.
So I let them be responsible for there particular areas. Then by the time it gets to me that means that there is a problem. I have my eyes open and I need to know something about every department but you don't want to micro manage any particular department.
I think it's important for people who love music to retain physical CDs or even vinyl, because it sounds so great and so much warmer than music over the internet.