Yeah, I think he's going to have to do something fairly quickly or risk being out of the starting lineup (in pinch hitting mode as kdog has suggested) or sent down. We're not there yet, AJ and Scott probably aren't there yet, but it's getting closer IMO.
In general though, at least on the SM, it seems to have reignited the debate about whether they should have brought Chapman in or whoever (who, btw, only has a 0.642 OPS at the moment), but the fact remains that the long term success of this team rests on these younger players. Even beyond Spencer Torkelson, Colt Keith and Parker Meadows.... all of them did what they needed to do in Toledo, sending them down may help for a reset but, in terms of gaining experience, there's nothing to be gained by that. And at some point, you have to give players runway to sink or swim. You have to be able to find out who these guys are and whether they fit into the long term plans.
In the larger context of this being a much improved team over previous seasons, it's not ideal. But its the reality.... and it would have been the reality regardless of whether they signed a Matt Chapman or JD Martinez or whoever.