Think about this: if the ultimate goal to training is to create adaptation in one or more systems, then all of your efforts should be directed to do just that.
Unfortunately, if you look at most people's training (either self-directed or "programmed" by their Coach or Trainer), there is a large percentage of "busy work and bullshit" going on.
How do you know if you training is making a difference? One of the best indicators is body composition. In other words, are you adding "mass to your ass" or just sliding that stuff around? Another good indicator is your RHR (Resting Heart Rate) and HRV (Heart Rate Variability). If these two indicators are not heading in a positive direction then once again you are heading in the wrong direction.
If you spend a lot of time doing squats with ten pound dumbbells and triceps kickback with bands... you might want to reevaluate what you are doing. Oh... and fire your trainer! :)