Has Mookie Betts made himself a trade untouchable?

Alex Speier writing at *WEEI*:

> Now, at the least, Betts has a chance to assert himself as a player with sufficient versatility to offer the Sox coverage at a number of spots on the field. The Sox have been getting a look at him in center (where he’s been a fairly solid option even as a work in progress) and right (where he has more work to do, given that he’d never played the position before a crash course there in late June). He’s verified the Sox’ suspicions that he can play there.

I am going to be bummed if the Red Sox get rid of Betts **or** Pedroia. There has to be a way to keep, and play, them both.