Sadly, we're now at that point.
I will say for Yamamoto that there are some things he does well even when he's not scoring (which is most of the time --- but, even then, he at least has a 20-goal season under his belt). But Puljujarvi doesn't really do much of anything at this point. Nor does he score. Nor does he score with the puck on his stick in the low slot and 8 or 10 chances to beat a goalie.
With his contract (and his attitude--he thinks he's a 1st-liner), they can't send him down or scratch him. So, it's kind of a pickle. Either he plays his way back into the good books with 8 goals in his next 20 games... or they trade him. One extreme or the other has to occur -- it can't go like it is.
Holloway is a little similar in that he's clearly not NHL ready at this stage. (Remember when y'all were predicting big things from his this year after his hot pre-season, and myself,
@Drivesaitl, and one or two others -- who've been around the block a few times -- were saying, "Nah. It's pre-season. It means jack squat." Remember this next time a 20-year-old scores pre-season hat tricks.) They need to send Holloway down so he can play, get his confidence back, and try it again next season or whenever. I think he'll be a good NHL player sooner or later, but he's hurting the team right now.
Not sure what to do with Yamamoto. I like the player very much, but at some point you've got to produce. Third line until he starts scoring, I