Even if Pinto signs tomorrow, I would keep Greig in the lineup in the short term.
It has only been one game for Norris. He may have his ups and downs since he has played so little in the last two years. Pinto also will need time to get up to speed.
Even if Greig is stuck on the 4th line, it would be ideal to have someone who can shift up to either of the middle 2 lines on C or W in a scenario where Norris or Pinto aren't playing well.
Greig has shown chemistry with Tarasenko, so I would hesitate to separate the two.
Also, if we sign Pinto that means Kubalik might be gone. That could open up a spot for Greig to move to the wing with the Norris/Batherson pairing. Although, I think Joseph could also be a good fit there because it gives them someone fast to be a retrieval guy and disrupt things on the forechek. Batherson is big and aggressive on the forechek, but he is slow.