It's been only a couple weeks since the moves on the training staff. It's only mid-November!
I believe this is another hangover from the Avila era: the implicit assumption that any move the Tigers front office makes to address anything either won't make any difference, or is at best 50/50 due only to luck. I would agree that was true under the Avila regime, who simply didn't know what the fuck they were doing. Fans can believe going in that this will also be true under Harris because plus ça change and all that, and be as skeptical of him as they were of the former guy. And maybe that's totally fair to expect until he documents some success, I don't know. Perhaps I'm blindly checking my skepticism at the door and huffing some hopium, but as for me, I'm going to give Harris the benefit of the doubt that it will be fixed until we see that it isn't, because I trust his process based on his background and interviews.
As for injuries throughout Baseball: I'm starting to wonder whether the Drivelining of the game in general—wherein the quest to add even a single tick and a little late movement to fastballs, in order to induce more swing-and-miss, leads to maxing out the stress on shoulders and elbows while training for it—isn't a factor leading to the injuries.