Strength coaches find it hard to justify planning in detail. It’s hard to predict how an athlete will respond to training stimuli in the next few weeks let alone in 6 months. It’s tempting to rock up and see what happens.
What to do?
Lock in what you know; it’s probably more than you think.
Predict what you think you know; likely to be less than you think.
And for the rest agree in principle how you want to show up for each other.