the briefing pack says that PF is responsible for throttle management from the time you call FLAPS UP. during the climb-out phase after a G/A the N1 is set to 90% and should not be touched until flaps up call is made.
this is done at 190 kts and from that point you can reduce power to maintain the up speed.
it is also specified that flaps should remain at 15 degrees until level off.
SOOOO, until level off and speed not below 190 knots the PF shouldn't reduce thrust.
this is why i said i cannot handle throttles before flaps retraction.