The Most Common Way Entrepreneurs Kill Their Business
nickoneill.com
nickoneill.com
I think it's OK to skip from one thing to the next if you build a team that will support and nurture what you've built before you leave.
Bill Gross has a helpful taxonomy that explains this stuff: http://masongentry.com/images/personality_types.jpg
My figures were off and he says "executive talent" not product managers, but my point about benchmarking stands. Sry, it had been a while since I watched it : )
And 1 million what? Dollars? Units sold? The vast majority of Amazons divisions aren't even direct revenue drivers. Only the merchandising groups are.
Any group larger enough to be identifiable as a business unit measurable size is far too complex to have a "product manager" running it.
If your customers are consistently saying, "this is nice, but what I really need is..." that's a massive sign that you should refocus your product to address their pain.
It's common for a basic product to satisfy many customers, who then all have slightly different needs for additional features. Taken to extreme, you end up with Microsoft Word.
On the other hand, you have Spolsky's claim that the #1 way they increase sales is by adding new features.
Finding the right balance is difficult, so it's easy to say that it's a common cause for loss of focus by entrepreneurs.