Save and load.
I always sally out and attack -- regardless of the odds.
I'll sally if its 2-1 or less against me, otherwise wait for relief.
Wait for a relief force.
Sally in the last turn or two before starvation.
Sit there meekly and accept my fate.
Fight on the walls when the assault comes.
Fight in the streets when the assault comes.
Sally only when they assault to backstab them.
I've modded out the sieges entirely, so I only have field battles.
Save and load.
"The facts of history cannot be purely objective, since they become facts of history only in virtue of the significance attached to them by the historian." E.H. Carr
Bookmarks