Pastor, elder, bishop, minister, reverend, etc. Though the names for "pastor" are many, even more so are the various qualities from pastor to pastor. From one pastor to another, there can be various different abilities, passions, beliefs, preaching styles, personalities, and emphases. A couple broad generalizations that I was thinking about this morning are "retail pastors" and "corporate pastors," also describable as "picture perfecting" and "frame perfecting" pastors. I prefix my more detailed description with the statement that these can interrelate. Retail pastors can have corporate qualities and vice versa.
A "retail" pastor, or "picture perfecting" pastor, is one who likes to get his hands dirty. This is the pastor who, before and after services and throughout the weeks is always hopping from one person to the next, getting to know the people intimately and helping them individually, one-by-one. He finds his greatest fulfillment in constant face-to-face interaction with his flock. His messages focus more on day-to-day stuff rather than broad principles. And though he loves preaching, he can't wait for his messages to be over so he can get back to more personal interaction. This pastor focuses on the "picture" and does what he can to make it as whole, crisp, and beautiful as possible detail by detail.
While every pastor should have retail qualities, some pastors are more corporal, and focus more on the frame that holds the picture in place.
The corporate pastor cares for his flock just as much, but focuses more on the general structure which provides the atmosphere within which his flock breathes and moves. He loves to analyze and adjust programs and systems based on his perception of the needs and gifts of the ever-fluid flock. He carefully organizes the responsibilities of deacons and other church leaders. His biggest concern is that the flock have perfect framework within which they can flourish and show forth God's beauty.
I believe that every pastor should have both qualities listed above, but not every pastor has the same ability as the next. Some are made to do better at one end than the other. Both sides are important. Figuring out which fits you the best may help you determine how to distribute responsibility among elders.