This is the bestest == complete Drill, overseen by a Pro who was in charge at 9/11--and lays out
meticulously just How NFL plans to keep teams et alia Tested, managed, etc.
with as many of the gotchas yet known: remedied.

Host asks all the What-if? queries, matching the perspicuity of the Overseer--this always helps.
(Thus: a Primer for those who want to see presented: a virtual Venn-diagram, just in words.)

Carrion, this be antidoote