The thing about Sandoval is the Red Sox signed him. They signed him two offseasons ago with the knowledge at the time that it was going to be all about the 2026 season. There might of been some hope that he possibly could contribute in the bullpen at the end of 2025 but for the most part, it was about 2026.
We don't with any real clarity or precision how teams internally evaluate players. We don't fully know what the Sox liked about or saw in Sandoval, except that they did. People love to reference what Patrick has done, but that doesn't illustrate what the Sox think he is.
Do they think he can take a step forward with them? do they think they can tinker with his arsenal? Do they think he's a #5 or a guy who if they can do what they hope to do with him is a #2?
Now, things can change, maybe they don't like what theyv'e seen in his rehab, and hearts change over time perhaps they roll into 2026 thinking they have 5 legit better options than him.
But penciling Sandoval into the 2026 rotation has always made complete absolute sense to me, and I say that as someone who wouldn't be completely shocked if he's not one of their main 5 starting pitchers in 2026 either.