757 is a growth acft --- OFP going from 7 to 16 over the next year.

Given that approximately 130% growth, and the current # of Capts (34) and FOs (24) the company may allow "growth" in those seats of about 40 Capts and 30 FOs and only "excess" in the 757 during the next round, if the "growth" exceeds that #.

Just a WAG...