@Franzl, CONF:
The precise position of the stick is considerably less important than being able to work out that the stick is not where it should be. Once that is ascertained, then the only logical recourse is "I have control".
This isn't a trainer, where the junior pilot follows through his senior's movements - this is line flying, and if your colleague is not successfully controlling the aircraft into a recovery, then they have no business continuing to do so.
Also, CONF - if you use the Search function - my username plus the keyword "yoke", you have instant access to everything I've ever said on the matter, including conversations with you. I'm not going to be your monkey by rehashing it again.