Right now, Sosa is probably the best all-around SS on the team. Rojas is #2. Sosa is probably the best at second base, too. So, they will probably bench Sosa to start season.
The obvious players are
Amaya
Baldwin
Colson
Meidroth
Rojas
Sosa.
Did I miss one? I don't know if any of them are any better than Nicky Lopez last year. My hope is that Colson takes over in Spring Training. We'll see.
When Madrigal first came up to Sox, he had trouble with the throw to first, ala Steve Sax. I know it was psychological, but still, I had my doubts right then.