As the director you should concentrate on what shots you need and which shots are most important to get in the can and let the AD worry about what order to shoot them in.
I'm not a fan of shooting simple scenes on more than one camera, but if you have to for speed or any other reason you need to involve the DoP in that conversation, as well as the AD, plus any other heads of department who may be affected by shooting multiple angles simultaneously.
The secret to shooting fast is good communication and good planning. Hope that helps.