Sprints Need a Cooldown

Teams vary in the amount of handwringing their leaders do about sprints that aren't perfectly rightsized. What if we bit off too much work at the start of the sprint and can't finish it all by the end? What if we overestimated the work and didn't fit in as many tickets as we could have? I've worked with teams where having work incomplete on the last day of the sprint was no big deal, it happened…