Xander's value is dropping by the day, locking him up is pretty much by the boards now.
Locking up Betts still makes sense though, I think, and I believe a 6 or 7 year offer is what is needed.
I do believe Mookie will figure it out on the offensive end. I have faith in him as a long term star.
If you let him get to free agency there's a good chance he's gone.