The plan was fine. Nobody changed a calendar, a budget or a target to make room for it. We see it in most first meetings, so here is the argument in full.
The pattern
A leadership team agrees a direction in an off-site. Everyone leaves aligned. Three weeks later the calendar, the budget and the targets look exactly as they did before.
Why it happens
Strategy is usually written as an addition. Nobody is asked what stops. Without that, the new work competes with the old work for the same hours, and the old work has deadlines.
What to do on Monday
Write down the three things you will stop. Move one meeting, one budget line and one target. If none of those can move, the strategy has not been agreed yet.