I mean if you are selling detergent, paint or soap its a different argument there. But even in that case you still have to be darn good at distribution, financ

I mean if you are selling detergent, paint or soap its a different argument there. But even in that case you still have to be darn good at distribution, financials, marketing etc. You can't exactly dictate things cluelessly at a abstract level like managers in software do.