In progress…

The tail gets whipped around (find a YT video or gif) and flung off the back.

Similar to being on the back of a group bike ride on local roads. After every stop for a street sign or light, the line gets stretched out, and those on the back have to work hard to catch up to the front. Only to do it again at the next stop.

As a PM, if you are the party actually doing the work, everyone else takes their time, and you, the ones who actually do the work, are constantly rushing to make the scheduled dates.