The Yankees off season has just been bizarre. They let go one of the most durable players in recent memory, and a hell of a good player in Cano, and add a bunch of injury prone free agents. The Yankee infield is going to be dreadful defensively. The organization panicked, and strayed from their plan to get under the cap, and rebuild the farm when the fans stop showing up, and TV ratings nose dived.
Add to it now Tanka who is now sitting on the 5th richest contract for a pitcher in history, and has not thrown one pitch here. At least he's young, but that's a pretty huge leap of faith. I certainly don't think he's on Darvish's level.
Yankees are just trying to sell tickets again with these moves. Short term think it will work out for them, as it is reinvigorating the New York fan base, but long term I think it ends very badly. Way to many long contracts given out, and no signs of life in their farm.