Jeff, I get you. Everyone should learn to rebuild car transmissions and engines. And everyone should learn how to farm. And everyone should learn how to represent themselves in court. There's a difference between understanding "knowing enough to get yourself in trouble" and actually digging in deep enough to get yourself out of trouble. I agree with you Jeff... too many people advocate we all know about all subjects enough to get us out of trouble. But folks, there isn't enough time in a life to do such. So focus on what comes naturally and makes you happy (because you are wildly successful at that domain and easily grasp it). There's nothing wrong with knowing just enough to get in trouble as long as you know that's all you know and fall back on someone who can get you out. Don't abdicate, but delegate. If something comes up and sounds fishy, then dig a little deeper to verify your "expert's" statements, but don't go off studying everything so you can tell everyone else how incompetent they are. Just in time folks, YAGNI.