Even Bellamy spoke about how not all errors are created equal: he was saying that some errors are the result of chancing your hand in attack and are worth it - they are just part and parcel of attacking.
Bellamy is correct, but there is even more to it, as I am sure he knows but is not saying out loud. He is probably aware that there is a problem in their definition. If errors are defined only as those sets that you
don't complete, a coach is ignoring many other correctable errors: mistakes, lapses, missteps, miscalculations, transgressions, miscues and ... what's the technical term? ... brain explosions, that can undo a team. True errors can be of commission (a knock-on) or of omission (a failure to pass). Errors can be physical (dropped ball) or mental (misreading the opponent's intensions) or emotional (
Jazz, looking at you, mate). And if that's not enough, an error can even have a highly positive outcome, such as when a misdirected pass is retrieved and, lo and behold, a huge gap opens up because the other team thought they would get it and lost their defensive shape. If they don't already, coaches need to better understand that errors come in a variety of disguises, but that they come more often when players are physically fatigued, or just mentally fatigued from having to make too many decisions. Errors are far more complicated than Bellamy is letting on.