Pick the side. Set the shape. Then watch every pass of it play out.
Touchline is free software, released under the GPL-3.0.
The match
A live engine simulates all twenty-two players, tick by tick, and streams the match to your browser as it happens.
The dugout
Pick a formation, give every player a role, and see whether the shape holds when the other side presses.
The season
Plan the training week, work the transfer market, and climb the table one matchday at a time.