Just wait until the seniority lists are merged. 8 year Envoy FO's will be saluting 1 year PSA Captains.
Envoy pilots are in a bind, you have too much heavy weight at the top of your seniority list to survive. Everytime an FO leaves Envoy and your seniority list shrinks, the cost of labor just continues to escalate.
The only thing that matters to American is 12/4 that's it, it's the key to everything including your merger.