It may not be minor, but I think it would be helpful to make half-time adjustments to your offensive and/or defensive strategy.
Your coach already makes in-game adjustments as the game progresses.
If you mean real-time adjustments by manager, this is likely not going to happen, since the game actually simulates within the 15 minutes prior to tip-off, and what you see is just a delayed display of events.
"I don't know half of you half as well as I should like; and I like less than half of you half as well as you deserve."