Gambit
The best quarterbacks learn to take calculated risks. When they enter the zone, they can't be intercepted (by AI defenders) and have increased throw speed.
Make consecutive passes for 5+ yards in air
Don't throw incompletions
Tight Out
Passers with this ability improve the catching prowess of all tight ends who are open on pass plays.
Quick Draw
Passers with this ability have faster passing animations when they are throwing under pressure
Closer
Locker room pep talks go a long way. Players with this ability can easily enter the Zone in the 2nd half.