"Pinks" results

I watched a re-run last night for a few minutes, another thing that
puzzles me is, Why is there 20 crew members per team???
Its not like they are a Funny Car or Top Fuel team.
I am at the track twice a month, one buddy has a 9 second Duster,
another a hi 10 '68 Charger, and lastly an 8 second Mustang. We all
help each other if needed, but there is not 25 guys standing around!!
I'm confused????