[milod]

What if he said prioritize instead of kill? Often the number of good ideas and resources required to realize them far exceeds what is available, practical, or realistic. Killing is effectively setting the priority to zero. I don't think it discourages innovation if thought about in this context because it encourages innovation on the critical path.

[walkon]

I define a "good idea" as something that is possible to realize; practical and realistic. If it's not practical business decision, it's probably not a good idea.

[akeefer]

Well said. Lack of focus is often more of a danger to a company than lack of good ideas, and that goes double for startups.