Always thought an independent time-keeper would be a good idea but I suppose there is one potential drawback. With the clock stopped, there would be less urgency generally for players to get on with the game. Potentially, although it wouldn't be 'time-wasting' as such, teams would have even more...
Seems to me time-wasting is the biggest issue overlooked in the overhaul of laws and interpretations this summer. Hopefully, next year's directive will be to dish out early yellow cards to teams that try this. It short changes fans. That said, the clamp down on dissent has had a positive effect...