While I agree with Sriram's overall point in this post, I think your comment shows there is another point Sriram is making (but not explicitly): Have a plan

While I agree with Sriram's overall point in this post, I think your comment shows there is another point Sriram is making (but not explicitly): Have a plan, but know that no plan survives first contact with the enemy. Planning/strategy sessions can be very, very useful in helping to form a plan early on. They expose ideas and roadblocks and hard questions. They are a MEANS to an end and that END is NOT a strategy. It's a set of hard problems, ideas to pursue, and a framework for making decisions (and sticking to them) that is the END. So don't take Sriram's advice too literally. He's not saying "Don't plan". He's not saying "Don't ever think about strategy". What he's saying is, like everything in life, do it with moderation.