Yes, 1o1 and rebounding etc, i tend to not 'aim' to train these in a season, because i know that at some point my training minutes are going to get fubar'd, and so i can revert back to training one of these two -posi training methods.
BUT, would you really change your training tactic if your trainee only got 46 minutes?
Its probably a personal thing. Even 43-42 minutes im still going to be satisfied. I supposed it depends, if i have stuffed up the training 3 or 4 times that season already, then I would definately accept low 40 min training, as opposed to doing a different training method that i dont really want.
So it depends on the circumstances for me personally.