Also, while I would definitely like to pursue another center, I'd be careful about getting all caught up in the logjam "problem."
Lines are fluid and people get way too riled up about ranking them. When the Kings won the Cup in 2014 King-Stoll-Williams played more than Pearson-Carter-Toffoli. Everoyne would consider the latter their "2nd line" and nobody cared that Carter was actually on the 3rd line by TOI.
In 2017, Hagelin-Bonino-Kessel was effectively Pittsburgh's "3rd line" because no Crosby or Malkin but it was also their best line and again, nobody cared that their star winger was on "boogah boogah the 3rd line!"
If we win the Cup in 2023 with Kreider-Barron-Fast f***ing everyone up, nobody will care that Kreider is on the 3rd line.