"I happen to know all of the FO's moving onto that fleet, except 1 guy, 99% from the Westside , moves are according to seniority
(well kinda) on the 737."
Spot on with the "kinda"! Btw. it is quite "funny" to listen to 737 F/O's who feels more qualified to move to 57 than F50 F/O's. So they already flew a jet = transition is less "painfull" but hey; 99% of them came from a Piper Seneca or similar before "getting" a jetjob... 99% of the Fokker F/O's has a previous career in G/A...
Remember where you came from guy's