If you want to be a bad product manager, rely solely on technology to communicate with coworkers. If you want to be a good product manager, communicate in person as much as possible.

If you want to be a bad product manager, manage an existing product as if it was a new product. If you want to be a good product manager, understand that an existing product needs to be managed differently than a new one.

If you want to be a bad product manager, keep answering the same questions over and over again. If you want to be a good product manager, try to never answer the same question twice.

If you want to be a bad product manager, don’t get caught up in all of the hype around the iPhone. If you want to be a good product manager, see what lessons you can learn from the iPhone.

If you want to be a bad product manager, answer a question even when you’re not sure of an answer. If you want to be a good product manager, do not be afraid to say “I don’t know.”

If you want to be a bad product manager, have a low-cost strategy. If you want to be a good product manager, do not pursue a low cost strategy unless you truly are offering a commodity product that can not be differentiated at all from the competition.

If you want to be a bad product manager, worry about your current competitors. If you want to be a good product manager, worry more about your potential future competitors than your current competitors.

If you want to be a bad product manager, don’t evaluate your performance or attempt to improve. If you want to be a good product manager, measure your effectiveness and work to improve.

If you want to be a bad product manager, use conferences and trade shows where you are exhibiting as a time to sell. If you want to be a good product manager, use conferences and trade shows where you are exhibiting as a time to learn.

If you want to be a bad product manager, reject any notion of Agile product development. If you want to be a good product manager, keep an open mind about Agile methods in product development.