Calling FMA modes and checking speeds isnt about the individual pilot knowing the limitations or how to use the AFDS... It is about both pilots being in the loop when it comes to what the aircraft is doing. Particularily important when you work for a huge company and fly with different people all the time. Because I have never met him before, I dont know if the other pilot is a muppet or not. I would like to know he is checking up on me as I do him for mistakes in speeds or FMA changes