..and the answer is: the college system can barely grow the talent to sustain a 32 team league. 2/3rd's of NFL QB's are not worthy.
Imagine the disaster when Roger Goodell tries to expand the league even further.
..and as a worker, I'm very pleased that backups can stick around.They're making a solid living, earning millions, for only knowing the playbook and being a training camp arm and an ancillary contributor in the QB room. Good for them!