Quoting: HockeyIsMyPassion61
Karlsson is massively overpaid for his production, And there's no reason for Martinez to waive for a team that's in the Connor Bedard sweepstakes.
William Karlsson this year: 14-39–53, 17:28 TOI/GP, +14
Recent free agent centers:
Andrew Copp: 21-32–53, 19:11 TOI/GP, +15 -- $5.6m x 5 years
Ryan Strome: 21-33–54, 18:19 TOI/GP, +15, -- $5m x 5 years
Vincent Trocheck: 21-30–51, 17:52 TOI/GP, +21, $5.6m x 7 years
Extremely similar production (and Karlsson is less of a PP threat than those guys, too) – Karlsson has a slightly higher AAV but doesn't have the long term. No, he hasn't lived up to his 40-goal season, but he's paid appropriately as a 2C on a team that has two better options (Eichel and Stephenson), so he's a luxury.
As for Martinez, he has a 12-team NTC that slides to an 8-team NTC this summer. Most players use 7 of those slots on the Canadian teams. I'd wager that Arizona, Anaheim and Chicago are pretty common on those lists nowadays, too. Depending on the timing, it may not even be up to him, but if it is, Columbus may not even be on his list given that he played college hockey in Ohio.