if that happened on my druid, i would simply turn and swipe a close target. swipes range is about the same as a consecrate, but you'll still have to make the initial turn. if you do need to switch targets, tab works fine. being a bear is a bit different from the pally. micromanagement? not at all. more like target switching to get a mob back? possibly. but then again, if you plan your pulls right, the only time you really need to switch targets would be when a mob decides to attack your dps/healer due to game design. besides your taunt, each class has their own way of getting the mob back.

personally, i have no issues with either my pally or druid tanking. they do fine and have their own strengths and weaknesses. its hard to come out with a favorite but i have to say i dont have it any more difficult on a druid than on a pally. from a healing standpoint, healing the drood is a lot easier than healing the pally.