One of Byron or Lekhonen will be 4th line LW, that’s an instantaneous upgrade, I expect JoJo will work his usual magic on his reclamation project, which leaves the 4C acquisition as MB’s deadline need.
Jeff Carter would be a mighty nice add IMO in terms of cost of acquisition vs need - not only help solidify 4-lines capable of scoring, but help on faceoffs, the missing sniper shot on the PP & being an excellent on the PK wouldn’t hurt either.
The $5.3M AAV going out another 3-more seasons is an issue but Carter could always shift to RW over time and that’s assuming he’s actually interested in playing out the remaining years since most of his salary has been paid out