If there’s reasonable assurance he’ll never play again, then that would be a good candidate to give Arizona a draft pick to accept. Not sure the Oilers really need to do that though.
Sekeras injury has a good chance to bring down his performance level after he recovers, but it is not a career ending injury. He's on LTIR until he recovers. These other guys that AZ has taken on were never going to pass a physical again.
As for Strome, it does seem that AZ doesn't think as highly of him now. When they have Keller at C, and they added Chucky at C, and have said they want to play him there. They had Strome coming, but they opted to grab Hayton a C over Zadina and Hughes, you had to wonder, hey are they no longer as high on Strome? Can get taking a C over a winger, but if they were more confident on Strome being what they hoped when they drafted him, you'd think they would have added at another position like D and taken Q. Hughes.