ICC News: ICC cricket committee calls for DRS in all Tests | Cricket News | Cricinfo ICC Site | ESPN Cricinfo
I like all the suggestions tbh. Would be fun to see fast bowlers head hunting the bastards to try to get them to retire through injury . Though with the protection the way it is, I doubt most injuries that require a runner could be caused by the bowling.
Anyway it makes sense on it's own - in other sports if you get injured enough so that you can't perform an important part of your skill, you leave. Running is obviously a key part of being a batsman.