But then this very well-educated person said the key thing: "I never knew there was so much to be known about retailing!"
Well, that incident happened a few years ago when retailing was perhaps more understandable, even more predictable. Alas, those days are history! Today, nothing in retailing is quite as understandable or as predictable as before. Or as manageable!
If you feel more confused about what to do, what decisions make sense, look. You've got lots of company! Retailing is entering uncharted waters.