[jseban]

> There is a lot of space between those positions, an optimal usually exists in there.

Yeah but finding, or rather estimating, this optimal is a lot of work, and requires you to have one foot in both camps, and some kind of process/authority to make a decision, and some incentive to make a short term sacrifice for long term gain. That's just not going to happen in a weekly sprint planning, in a company that's aiming for the next quarterly report.