IMHO pitchers should pitch and fielders should field just that simple ....
I respect that, but I'd be curious to know how often anyone has seen a pitcher injured by a runner sliding at third base. The only time a pitcher has a play at third is when there is a bunt w/ a runner on first and when the third baseman fields the bunt, and when the runner at first tries to advance from first on a bunt. Those things might happen on the same play fewer than 5 times all summer. A pitcher is more likely to be injured running the bases. If your pitcher is an excellent baserunner, should you always pinch run?