That offer might get Marner but Staal and Minni have no motivation to make the deal, so the it's getting closer to the cap. And then next year with lots of players expecting raises new contracts, now it might be difficult to sign everyone.

The smart offer sheet is working a deal with Carolina to get our conditional 3rd back next year, and then offering Marner 5yrs at 10.56m, then it is 2 1sts, 2nd 3rd. Either we get him for a better Cap number and cost or we blow up TML cap. Either way its a win.

rangers will be fine in the long term even without the staal trade. By the time most of their players are up for new contracts almost all of our cap will be off the books.
Kreider should be traded unless he agrees to a team friendly extention (at most the Nelson deal)
In 2-3 years when chytil, andersson, howden, rykov, shestyorkin, kravtsov, kakko/hughes, fox, zibanejad are up, we will have Shattenkirk, Staal, Lundqvist, Namestnikov, Smith, Vesey, Girardi buyout, strome, all essentially off the books.

Chytil/Anderrson/howden/rykov probably won't cost too much, probably the salary from Staal Namestnikov and Smith (roughly 3-4m per player).
Kravtsov/Kakko-Hughes/Shestyorkin, Fox and Zibanejad could easily be made up by Shattenkirk, Lundqvist, Vesey, Girardi and strome (and potentially kreider) plus the cap escalators over the next two years (potentially 32m factoring in a 3% escalator per year, roughly 6-7m per player as a raise).

Rangers would be better off signing DeAngelo/Pionk to 3 years, by the time that deal is done, Lundkvist will probably be NHL ready. Similar to the buchnevich deal, he'll be a third liner in 3 years since he plays RW (same as kravtsov and kakko) so having a limited time of him will be beneficial for the rangers. They still have many draft picks this year and the years to come, so bottom pairings can hopefully be filled by 1st and 2nd round prospects (understandable that all prospects won't work out) or cheap free agent signings