Ms Nelson: "It's insufficient and is part of the reason you have twice as many pilots with certificates to fly today as are performing the job today"

from the FAA, U.S. Civil Airmen Statistics, Annual Statistics.

Estimate of active certificate holders as of 12/31/2016
ATP = 157,894
Commercial = 96,081
Total = 253,975

Total Airline jobs. The only answer I verified was Boeing's estimate of needing 85,000 airline pilots.

1:00:44: Mr Childs: Yeah, but none of those other pilots are worth a darn.