At my last campaign we had a ton of trouble with that sort of thing (indecision). Many of the players wouldn't pay attention unless the actions directly affected them to the most serious degree. People would get up & smoke when it wasn't their turn, take out books, even pick up a guitar & start playing it. Fortunately we removed some people, removed many of the distractions, & talked about the problem. Now things go alot better.
With how much time is taken outside of your turn, you should have a pretty good idea of what you are going to be doing, not to mention depending on the battle, you can generally get a rough sketch of a battle plan in your head that will tell you relatively what to do in battle.
With how much time is taken outside of your turn, you should have a pretty good idea of what you are going to be doing, not to mention depending on the battle, you can generally get a rough sketch of a battle plan in your head that will tell you relatively what to do in battle.