Sublime
An inspiration engine for ideas
5 essential questions to craft a winning strategy | Roger Martin (author, advisor, speaker)
Roger Martinlennysnewsletter.com

Good strategy works by focusing energy and resources on one, or a very few, pivotal objectives whose accomplishment will lead to a cascade of favorable outcomes.
Richard Rumelt • Good Strategy/Bad Strategy: The difference and why it matters

That, as a startup, you should only do half of what you want to do (only half the options, half the tabs, half the offerings, and half the target audience) to compound your chances of true PMF.
Scott Belsky • What Is “Seeing the Matrix” for a Product Leader?

As a leader’s seniority increases, that leader should make fewer decisions.