If the Dodgers were offering De Paula and Pages for Robert, Robert would be a Dodger right now. That could potentially finish the future Sox OF with Pages in LF, De Paula in CF, and B. Montgomery in RF. See if C. Montgomery can turn it around in AAA, and continue to draft up-the-middle players in shortstops and center fielders, as well as starting pitchers.
But I still think you are expecting too much of a return for this version of Robert.