Watching a race weekend, the most interesting people are not always in the cars. They are on the pit wall, making calls with incomplete information and very little time.
Have plan B before you need it
Teams go into a race with a few strategies already worked out. A release should work the same way: know what you will do if a blocker shows up the day before shipping.
One clear voice
A driver hears one engineer, not the whole garage. During a release, engineering, support and marketing need one place to hear what is happening and what changes next.