"Run into the ground" is common hockey terminology that refers to a team giving an excessive workload, and it was also very evident that that was the intent of the phrase within Mess' post. Campbell has not had an excessive workload, so by definition, he factually has not been "run into the ground". Whatever you think is "wrong" with Campbell, it has not been caused by an excessive workload. If Campbell can't handle a normal workload, that is an entirely different issue that does not equate to the team "running him into the ground", but there is no evidence of that being the case anyway.