There was ALWAYS a real possibility (plan) the Yanks were prepared and ready to go with the youngsters when if Arod, Beltran and Tex broke down and finally succumbed to old age...of course they were expecting the team to contend and the process was simply accelerated as they DID begin to fall out of it with Arod being the first to falter and "break down".
Bird would've already been on the team and getting playing time had he not gotten hurt.
Severino was already in the rotation at the start of the season.
There's a reason the Yanks didn't trade a single one of their better top prospects at last year's deadline...(remember the heat they took for it?, how soon some forget)....and it wasn't going to happen at this year's deadline and what is happening now is not some new last minute decision to "rebuild"....
Even if Cashman (and ownership lol) were fired for those bad contracts, the Yankee team needed to get "younger" and build their farm system, and this is exactly what is happening....lol, no need for any Monday morning quarterbacking or rewriting history, it may not fit the naysayer narrative, but this "plan" didn't happen over night.
It's become clear and obvious the "other teams" aren't the only ones capable of moving in young players.
Go Yanks!