I hope you don't use "selections" as plural here, as the way I see it, the only questionable thing he did was overlooking Koivunen. But I tend to agree with Sanf that he likely wouldn't have been a rainmaker all by himself.
What this squad desperately needs is a top-six caliber center. All the other pieces are there. So, yeah, even one out of Barkov and Lundell would be a godsend.
There were no line changes in today's practice, so Pennanen keeps hoping that Lammikko could rise to the occasion between the NHL guys. While I sort of get it, I must say I'd like to see what Pärssinen could do in the spot. There are probably no magic bullets, but I recall how Jalonen stubbornly used Rantanen with Manninen and Hartikainen two years ago when everybody and and their uncle could see that they've no chemistry, and when the king himself finally conceded that point, it was too late.
As an aside, if Dallas finishes Winnipeg in the next game, it would make Kupari available. He's been a healthy scratch ever since being cleared to play three weeks ago, and has last dressed for a game in late March - so, yeah - but if Pennanen is desperate enough for an NHL caliber center, he could be an option. At least he wouldn't be gassed.