Depends how long the long term deal is, but most likely. The team is also loaded with MI prospects and is sparse in OF. They might think a better use of financial resources is the OF and maybe pitching. They have well documented pitching depth in AAA but outside of Bello, it's more quantity than quality. Mata and Walter being the best of that quantity. Walter was shut down earlier this year and will need time to get back up to par and Mata is at least another half season away. You can also never have too much pitching.
For the OF, they have Abreu and Rafaela who ended the season in AA and will start next year in AAA. They are also at least half a season away. Outside of that, you have to down to Miguel Bleis in the FCL to get to the next OF prospect. At least he's a really good one.
For the IF, there's Mayer, Rafaela (again), Lugo, Paulino, Yorke, Romero, Coffey, Bonaci, Encarnacion, Alcantara, Ravelo and more. Some of them will be moved to other positions (Paulino's been playing some CF) but there's just so many. I guess that's what happens when you are signing 16-18 year olds though. The best players play SS.
On Sox prospects, the Sox have 9 OFs in their top 60, 4 in the top 30 (Bleis 5, Rafaela 6, Anthony 11, Abreu 26).