Flight Directors showing, say 8º down pitch for the descent
Quite a steep descent there.. 2 deg from an upset recovery..
and a "TCAS Climb" event occurs. You disengage the autopilot and pitch up, away from the Flight Director command, and follow your pre-decided non SOP action of leaving the autothrottle engaged.
B737NG:RA= AP+AT OFF.
Are you only hoping for the Alpha floor function to save your stall as you pitch up without adding power?
This 'alpha floor' doesnt work if your aircraft altitude is above your MCP altitude.