From the onset of training, the trainer should emphasize the FD are nothing more than tool for guidance. During line training, a new pilot will gain better experience and confidence by reinforcing the four fundamentals of flight without the aide of the FDs.
I encourage my F/Os to perform manual flight without A/T or FDs upto RVSM territory and from TOD to landing. 3 for one planning plus X miles for descent and visual approaches when possible. No Pablo Picassos in the FMC for patterns, nor runway extensions for landing.